DPP-4181 [iOS] Update & Fix SwiftLint from CocoaPods

[csminticiuc]

Updated SwiftLint code formatter:

• Tried updating SwiftLint CocoaPod version from 0.45.0 to 0.49.1, but failed. Leaving it at 0.45.0 for now.
• Added SwiftLint script to each of project’s targets to output the warnings and errors inside Xcode.
• Added line_length rule exception because it makes the code more readable at a glance.
• Added syntactic_sugar rule exception because it makes the code more readable at a glance.
• Added vertical_whitespace rule exception because it makes the code more readable at a glance.
• Removed force_cast rule exception and updated the relevant project code.
• Removed identifier_name rule exception and updated the relevant project code.
• Removed opening_brace rule exception and updated the relevant project code.
• Removed trailing_comma rule exception and updated the relevant project code.

Jira ticket: DPP-4181