Release 0.3.0 - Githubissues

New features
- Chars submodule for Events
  - This allows for more native and better character-reading for inputs
  - TextInput uses this now
- TextProcessing module/trait
  - Allows the usage of TextProcessing such as Parsing optionally
- MenuSwitcher allows the switching of menus
  - Designed to be used for example in making button grids.
- Menu systems now support TextProcessing
  - This means you can add a parser to your menus (or interfaceitems), if you want.
Smaller updates
- Filters are now based on actual unicode block standards
- Default font changed to Source Code Pro
  - Added Currency Symbols -unicode block
- Add .fnt font support
- Rendering is now more according to proper font standards
- Menu API expanded
- Make Parser impl the TextProcessing trait and make it better
- Windows now use BorderChars and by default uses box drawing characters for borders
  - This is customizable from window.border_chars
- Window-splitting is now also possible with window.add_horizontal/vertical_split
  - This splits the window from the given index
Minor fixes
- Fix Clippy issues, make the code more optimal
  - Change API to be more idiomatic
- Change all coordinates to u32 from i32.
- Upgrade glutin to 0.16

Teascade / glerminal