* Added CSharp example
Using example from #330, for testing purposes
* Updated Rust test case
Rust test case now has a verbatim string that fails, with current
version of Tokei.
* Added C++ verbatim string to example
C++ Syntax makes this incredibly difficult to parse using the current
infrastructure, `R"PREFIX( )PREFIX"` where PREFIX can be almost anything.
* Updated F# Test to have verbatim string
* Add support for "verbatim_quotes"
Quotes that neglect the `\"` rule, in the case of python as mentioned
in #330 it produces the correct outcome with Tokei currently.
* Add support for verbatim_quotes in syntax
Properly keeps track of current state and handles escapes properly in
the case of being inside of a verbatim_quote
* Added `verbatim_quotes` to CONTRIBUTING.md
Erin Power
Nick Hackman