Forced-LTR mode should flip glyphs, rather than just reorder them

[Googulator]

In Old Hungarian, the "points" of letters always point in the reading direction. This font doesn't do that when the forced-LTR mark is used, it instead gives glyphs laid out LTR, but pointing RTL.

[tamasbartos]

@sztupy Hi! Include the left to right letters is useful, when a program display LTR order. The Visual Studio Code's terminal still uses it. You can to develop this capability inside the font based on RTL capability. There are a must this letters do not have direct codepoints, just only named and set as these letters are LTR letters and which RTL glyph must to be connected. Be carefull, programs with LTR appereance does not use ligatures at all!