New global config directives for old parser config directives

Adds new global configuration directives for the old parser directives. Should resolve #15

- parser.controlCharacterEscapePrefix
- parser.dropTrailingLFOnReception
- parser.escapeControlCharactersOnReceive
- parser.spaceLFOnReceive
- parser.escape8BitCharactersOnReceive
- parser.escapeControlCharacterTab

I will amend pull request #13 after this is merged to fit with the documentation and config usage.