Adopt consolidated logging mechanism (#4370)

* Adopted the new MXLog and replaced NSLog throughout the application - vector-im/element-ios/issues/4351
* Replaced NSLog() and print() usages with MXLog.debug()
* Added swiftlint rules for NSLog(), print(), println() and os_log()
* Escape paths used to run script build phases for swiftlint and swiftgen

Riot/Modules/Integrations/Widgets/Jitsi/JitsiService.swift

@@ -151,7 +151,7 @@ final class JitsiService: NSObject {
                 authType = jitsiWellKnown.authenticationType
                 continueOperation = true
             case .failure(let error):
-                NSLog("[JitsiService] Fail to get Jitsi Well Known with error: \(error)")
+                MXLog.debug("[JitsiService] Fail to get Jitsi Well Known with error: \(error)")
                 if let error = error as? JitsiServiceError, error == .noWellKnown {
                     //  no well-known, continue with no auth
                     continueOperation = true
@@ -251,7 +251,7 @@ final class JitsiService: NSObject {
                                           roomID: String,
                                           isAudioOnly: Bool) -> [String: Any]? {
         guard MXTools.isMatrixRoomIdentifier(roomID) else {
-            NSLog("[JitsiService] createJitsiWidgetContent the roomID is not valid")
+            MXLog.debug("[JitsiService] createJitsiWidgetContent the roomID is not valid")
             return nil
         }