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/Model/WellKnown/VectorWellKnownParser.swift

@@ -26,7 +26,7 @@ final class VectorWellKnownParser {
             vectorWellKnown = try serializationService.deserialize(jsonDictionary)
         } catch {
             vectorWellKnown = nil
-            NSLog("[VectorWellKnownParser] Fail to parse application Well Known keys with error: \(error)")
+            MXLog.debug("[VectorWellKnownParser] Fail to parse application Well Known keys with error: \(error)")
         }
         
         return vectorWellKnown