Added new filter type: text input (a simple input text) filter_type: "text" (https://github.com/vedmack/yadcf/issues/34)

Added new feature: case_insensitive, can be set to false or true (default) (https://github.com/vedmack/yadcf/issues/35)
Added new mode "startsWith" for filter_match_mode (https://github.com/vedmack/yadcf/issues/37)