Add a bug report hook. (#2988)

ElementX/Sources/Hooks/AppHooks.swift

@@ -19,7 +19,7 @@ import Foundation
 // MARK: Registration
 
 class AppHooks: AppHooksProtocol {
-    private(set) var appSettingsHook: AppSettingsHookProtocol?
+    private var appSettingsHook: AppSettingsHookProtocol?
     func registerAppSettingsHook(_ hook: AppSettingsHookProtocol) {
         appSettingsHook = hook
     }
@@ -28,6 +28,16 @@ class AppHooks: AppHooksProtocol {
         guard let appSettingsHook else { return appSettings }
         return appSettingsHook.run(appSettings: appSettings)
     }
+    
+    private var bugReportHook: BugReportHookProtocol?
+    func registerBugReportHook(_ hook: BugReportHookProtocol) {
+        bugReportHook = hook
+    }
+    
+    func runBugReportHook(_ bugReport: BugReport) -> BugReport {
+        guard let bugReportHook else { return bugReport }
+        return bugReportHook.run(bugReport: bugReport)
+    }
 }
 
 protocol AppHooksProtocol {
@@ -43,3 +53,7 @@ extension AppHooksProtocol {
 protocol AppSettingsHookProtocol {
     func run(appSettings: AppSettings) -> AppSettings
 }
+
+protocol BugReportHookProtocol {
+    func run(bugReport: BugReport) -> BugReport
+}