rework lexer to deal with open/close tags and add some unit tests for the lexer

finish up the lexer

restructure again because I feel that the lexer would be useful as a standalone subdirectory

fix bbcode parsing

create a wrapper struct to hold data only used by the lexer and make Matcher an interface

remove tests from parser because it's going to be mainly interfaces

re-re-restructure -_-;

slight edits to reflect new changes

run gofmt

add an OUTPUT comment so the example is run as a test

use template strings instead of the dual map system

working extremely simple implementation of the lexer

extremely basic default moeparser.Lexer

re-restructure :P

add example AddMatcher usage