ecore_wl2: be compatible with x input

ecore_wl2: be compatible with x input

This commit introduces a new state per input, this state is just for the
keymap and no modifieres, the state is used to get the keysym from a
keycode. This is done to stay compatible with x since keyname in efl is
the characters which are describing the key which is pressed, without
the transformation of shift etc.

This also escapes keycodes from beeing a utf8 character, and passes out
a keyname instead of the utf8 symbol.

fix T3976
fix T4184