Add more file properties, organize storage, add video block

CHDataManagement/Generator/Blocks/SwiftBlock.swift

@@ -0,0 +1,26 @@
+import Splash
+
+struct SwiftBlock: BlockProcessor {
+
+    static let blockId: ContentBlock = .swift
+
+    let content: Content
+
+    let results: PageGenerationResults
+
+    let language: ContentLanguage
+
+    private let swift = SyntaxHighlighter(format: HTMLOutputFormat())
+
+    init(content: Content, results: PageGenerationResults, language: ContentLanguage) {
+        self.content = content
+        self.results = results
+        self.language = language
+    }
+
+    func process(_ markdown: Substring) -> String {
+        // Highlight swift code using Splash
+        let code = markdown.between("```swift", and: "```").trimmed
+        return "<pre><code>" + swift.highlight(code) + "</pre></code>"
+    }
+}