This reverts commit 46e1dd21.

Merge preprocessor token additions into signed comparison fixes

AStyle: Add `protect, `ifndef, `elsif preprocessor tokens

Forgot to add PRO_PROTECT to preprocessor_headers in the previous
commit.

[debug] use istream::peek() != EOF to check eof of option-file

Enhancement doesn't seem to break anything and functionally tests just fine with the current updates.

This further addresses the changes made in #13 that conflict with the updates to the documentation output made earlier today

Updated help text and README.md to reflect updated stdio streaming implementation

Refactored help text printing to reduce redundancy

Format from stdin to stdout if no filename given

Closes #11 
Cursory testing demonstrated desired core functionality and requester checked for `stdout` compatibility

Implements #11

Because std::istream::operator bool() returns false AFTER FAILING get(),
the function `importOptions` read the final character TWICE.
Giving empty file for `--options=...` told me this error.

In this commit, `std::istream::peek()` is used instead. This member
function returns the next character without proceeding the file pointer,
which you can compare to EOF without any side-effects.

This covers both exponentiation (`**`) and `generate`/`endgenerate`

Add 'generate' keyword and remove first char check of header

Replaced all \n\n\n with \n\n in changed files
Improved some interaction of commas/spaces
Closes #2

Pedantic formatting to match other parts of the code