refactor: rename RDReaderView -> RDEpubReaderView, update pod config and docs

- Rename source module from RDReaderView to RDEpubReaderView
- Move all source files from Sources/RDReaderView/ to Sources/RDEpubReaderView/
- Update podspec: RDReaderView.podspec -> RDEpubReaderView.podspec
- Update Podfile, demo project, and CocoaPods config for new pod name
- Delete old RDReaderView pod support files from ReadViewDemo/Pods
- Add new RDEpubReaderView pod support files
- Update documentation (API ref, architecture, UML, conventions, etc.)
- Add FixedLayoutRotationTests
- Update .gitignore: exclude .DS_Store, manual unpack backups, _ssoft-output

Doc/UML_CLASS_DIAGRAMS.md

@@ -31,12 +31,12 @@ graph TB
         IndexTable[RDEPUBTextIndexTable]
     end
 
-    subgraph RDReaderView
-        ReaderView[RDReaderView]
-        FlowLayout[RDReaderFlowLayout]
-        Preload[RDReaderPreloadController]
-        Spread[RDReaderSpreadResolver]
-        TapRegion[RDReaderTapRegionHandler]
+    subgraph RDEpubReaderView
+        ReaderView[RDEpubReaderView]
+        FlowLayout[RDEpubReaderFlowLayout]
+        Preload[RDEpubReaderPreloadController]
+        Spread[RDEpubReaderSpreadResolver]
+        TapRegion[RDEpubReaderTapRegionHandler]
     end
 
     subgraph EPUBUI
@@ -297,11 +297,11 @@ classDiagram
 
 ```mermaid
 classDiagram
-    class RDReaderView {
+    class RDEpubReaderView {
         +currentPage: Int
         +currentDisplayType: DisplayType
-        +pageProvider: RDReaderPageProvider?
-        +delegate: RDReaderDelegate?
+        +pageProvider: RDEpubReaderPageProvider?
+        +delegate: RDEpubReaderDelegate?
         +landscapeDualPageEnabled: Bool
         +pageDirection: PageDirection
         +coverPageIndex: Int?
@@ -318,14 +318,14 @@ classDiagram
         verticalScroll
     }
 
-    class RDReaderPageProvider {
+    class RDEpubReaderPageProvider {
         <<protocol>>
         +numberOfPages(in:) Int
         +readerView(_:viewForPageAt:reusableView:) UIView
         +pageIdentifier(in:index:) String?
     }
 
-    class RDReaderFlowLayout {
+    class RDEpubReaderFlowLayout {
         +displayType: DisplayType
         +isLandscapeDualPage: Bool
         +coverPageIndex: Int?
@@ -333,7 +333,7 @@ classDiagram
         +currentPage: Int
     }
 
-    class RDReaderPreloadController {
+    class RDEpubReaderPreloadController {
         +radius: Int
         +pageViewForDisplay(pageNum:environment:contentViewProvider:) UIView?
         +takePreloadedView(for:) UIView?
@@ -341,13 +341,13 @@ classDiagram
         +invalidate(environment:)
     }
 
-    class RDReaderSpreadResolver {
+    class RDEpubReaderSpreadResolver {
         +isFullScreenPage(...) Bool
         +dualPagePair(for:totalPages:coverPageIndex:) (Int, Int?)
         +nextPage(from:totalPages:pagesPerScreen:coverPageIndex:forward:) Int?
     }
 
-    class RDReaderTapRegionHandler {
+    class RDEpubReaderTapRegionHandler {
         +resolveTapEvent(point:viewFrame:isToolViewVisible:) TapEvent
     }
 
@@ -359,7 +359,7 @@ classDiagram
         right
     }
 
-    class RDReaderPagingController {
+    class RDEpubReaderPagingController {
         +isTransitioning: Bool
         +didBuildUI: Bool
         +pendingTransitionRequest: PageTransitionRequest?
@@ -367,25 +367,25 @@ classDiagram
         +finishPageCurlTransition() PageTransitionRequest?
     }
 
-    class RDReaderContentCell {
+    class RDEpubReaderContentCell {
         +containerView: UIView?
     }
 
-    class RDReaderPageChildViewController {
+    class RDEpubReaderPageChildViewController {
         +contentView: UIView?
         +pageNum: Int
     }
 
-    RDReaderView --> DisplayType : uses
-    RDReaderView --> RDReaderPageProvider : delegates
-    RDReaderView --> RDReaderFlowLayout : owns
-    RDReaderView --> RDReaderPreloadController : owns
-    RDReaderView --> RDReaderSpreadResolver : owns
-    RDReaderView --> RDReaderTapRegionHandler : owns
-    RDReaderView --> RDReaderPagingController : owns
-    RDReaderView --> RDReaderContentCell : creates
-    RDReaderView --> RDReaderPageChildViewController : creates
-    RDReaderTapRegionHandler --> TapEvent : produces
+    RDEpubReaderView --> DisplayType : uses
+    RDEpubReaderView --> RDEpubReaderPageProvider : delegates
+    RDEpubReaderView --> RDEpubReaderFlowLayout : owns
+    RDEpubReaderView --> RDEpubReaderPreloadController : owns
+    RDEpubReaderView --> RDEpubReaderSpreadResolver : owns
+    RDEpubReaderView --> RDEpubReaderTapRegionHandler : owns
+    RDEpubReaderView --> RDEpubReaderPagingController : owns
+    RDEpubReaderView --> RDEpubReaderContentCell : creates
+    RDEpubReaderView --> RDEpubReaderPageChildViewController : creates
+    RDEpubReaderTapRegionHandler --> TapEvent : produces
 ```
 
 ---
@@ -403,7 +403,7 @@ classDiagram
         +highlights: [RDEPUBHighlight]
         +bookmarks: [RDEPUBBookmark]
         +tableOfContents: [EPUBTableOfContentsItem]
-        +readerView: RDReaderView
+        +readerView: RDEpubReaderView
         +readerContext: RDEPUBReaderContext
         +runtime: RDEPUBReaderRuntime?
     }