fix(metadata-generator): Improve blacklist/whitelist filtering diagnostics

[mbektchiev]

• In verbose logs include both the JS and Native names if different

• Output which rule enabled and which rule disabled a given entity
  in verbose logs. This makes it much easier to understand why
  a particular symbol is considered blacklisted or whitelisted.

• Output command line arguments in stderr stream along with stdout
  and remove the additional quotes and commas. This way it's much easier
  to grab all arguments directly from the stderr text file and paste them in
  Xcode to debug metadata generation.

• Rename the --no-apply-manual-changes argument to
  -apply-manual-dts-changes (defaulting to true). This name better
  conveys its purpose, uses LLVM argument parsing (like all other
  arguments) and doesn't start with a negation. Passing
  -apply-manual-dts-changes=false disables the default.

PR Checklist

• The PR title follows our guidelines: https://github.com/NativeScript/NativeScript/blob/master/CONTRIBUTING.md#commit-messages.
• There is an issue for the bug/feature this PR is for. To avoid wasting your time, it's best to open a suggestion issue first and wait for approval before working on it.
• You have signed the CLA.
• All existing tests are passing: https://github.com/NativeScript/ios-runtime/blob/master/CONTRIBUTING.md#contribute-to-the-code-base
• Tests for the changes are included.

refs #1209