Add the trailing whitespace rule in Swiftlint

[Vkt0r]

• Autocorrect the new rule in Swiftlint to remove all the trailing whitespaces

[swifter-bot]

	3 Warnings
⚠️	Big PR
⚠️	It seems like you’ve added new tests to the library. If that’s the case, please update the XCTestManifests.swift file running in your terminal the command swift test --generate-linuxmain.
⚠️	If you ran the command swift test --generate-linuxmain in your terminal, please remove the line testCase(IOSafetyTests.__allTests__IOSafetyTests), from public func __allTests() -> [XCTestCaseEntry] in the bottom of the file. For more reference see #366.

	1 Message
📖	Hey, @Vkt0r 👋.

Generated by 🚫 Danger

[Vkt0r]

Thanks, @pvzig!