Added support of Ukrainian and Belarusian alphabets

[DmKoshelek]

Adding support of Ukrainian and Belarusian alphabets:
Ukrainian missing letters(the full list is here https://character-table.netlify.app/ukrainian/):

• Є (uni0404)
• І (uni0406)
• Ї (uni0407)
• Ґ (uni0490)
• є (uni0454)
• і (uni0456)
• ї (uni0457)
• ґ (uni0491)
• ʼ (quoteright)
• ' (quotesingle)

Belarusian missing letters(the full list is here https://character-table.netlify.app/belarusian/):

• І (uni0406)
• ї (uni0457)
• Ў (uni040E)
• ў (uni045E)
• ʼ (quoteright)
• ' (quotesingle)

I applied this changes on all fonts and fixed opentype_feature.fea script.

I will answer the question that may arise right away. quotesingle/quoteright is considered a letter in both alphabets and is part of a word, not a separator, like the symbol ъ (uni044a) in the Russian language. For example:

• Belarusian: аб'езд, пад'ём, сям'я, вераб'і
• Ukrainian: б’ю, п’ятниця, в’юн, м’ясо, між’яр’я
  But this symbol is never come first in both languages.

[Born2Root]

Hi Dmitry,
thank you for adding the Ukrainian and Belarusian characters to the font!
Since I am not speaking the languages it would have been quite hard for me.