Add colored_string class
Add highlight_syntax
Integrate colored_string into readline_shell
Bring just::console::color into metashell namespace
Integrate colored_string into mdb shell
Merge branch 'master' into colored-string

Conflicts:
	include/metashell/metadebugger_shell.hpp
Add to_string for instantiation_kind
Add colored_string::size()
Add syntax highlight for ft output
Add operator+ overloads for colored_string
Highlight syntax in bt and step output
Highlight syntax in eval output
Remove magenta from ft colors

It conflicted with syntax highlight color