Rework of UK and RU standard layout plus added extended layout (#1215)

Rework of UK and RU standard layout plus added extended layout (similar to PC keyboard) as optional;
- Added 'ї' as separate letter (it used much more often, just to be optional key in popups)
- Added [ { } } popups to fill empty hint space (similar to PC layout)
- Added ' (apostrofee) suggestion onto 'є' key (similar to oter keyboards and to PC layout)
RU)
Added siggestion to 'ъ' on 'х' key (similar to other keyboards, anyway there was no popups at all)
- Added [ { } } popups to fill empty hint space (similar to PC layout)
- Added 'э́' suggestion similar to other keyboards
Both)
- Improvements to multilanguage typing (now this is possible to sue UK-RU or RU-UK pair, I added letters from other language as popups)
Added)
- UK Extended with separate ' key (used less often than 'ї', but still used pretty often)
- RU Extended, with separate 'ъ' key (similar to full desk PC layout)

app/src/main/assets/layouts/main/russian.txt

@@ -8,7 +8,7 @@
 ш
 щ
 з
-х
+х ъ [ {
 
 ф
 ы
@@ -20,7 +20,7 @@
 л
 д
 ж
-э
+э э́ ] }
 
 я
 ч

app/src/main/assets/layouts/main/russian_extended.txt

@@ -0,0 +1,34 @@
+й
+ц
+у
+к
+е
+н
+г
+ш
+щ
+з
+х [ {
+ъ ] }
+
+ф
+ы
+в
+а
+п
+р
+о
+л
+д
+ж
+э э́
+
+я
+ч
+с
+м
+и
+т
+ь
+б <
+ю >

app/src/main/assets/layouts/main/ukrainian.txt

@@ -8,7 +8,8 @@
 ш
 щ
 з
-х
+х [ {
+ї ] }
 
 ф
 і
@@ -20,7 +21,7 @@
 л
 д
 ж
-є
+є ' "
 
 я
 ч
@@ -30,4 +31,4 @@
 т
 ь
 б <
-ю >
+ю > ґ

app/src/main/assets/layouts/main/ukrainian_extended.txt

@@ -0,0 +1,35 @@
+й
+ц
+у
+к
+е
+н
+г
+ш
+щ
+з
+х [ {
+ї ] }
+
+ф
+і
+в
+а
+п
+р
+о
+л
+д
+ж
+є ' "
+' "
+
+я
+ч
+с
+м
+и
+т
+ь
+б <
+ю > ґ

app/src/main/assets/locale_key_texts/ru.txt

@@ -1,9 +1,19 @@
 [popup_keys]
-е ё
-ь ъ
+е ё е́ ѣ
+ф ѳ
+ы ы́
+а а́
+о о́
+я я́
+и и́
+ь ъ ы
+ю ю́
 ' ’ ‚ ‘ › ‹
 " ” „ “ » «
 
+і ы
+є э э́
+
 [labels]
 alphabet: АБВ
 

app/src/main/assets/locale_key_texts/uk.txt

@@ -1,9 +1,19 @@
 [popup_keys]
+е е́
 г ґ
-ь
+ф ѳ
 і ї
-' ’ ‚ ‘
-" ” „ “
+а а́
+о о́
+я я́
+и и́ і ї
+г ґ
+ю ю́
+' ’ ‚ ‘ › ‹
+" ” „ “ » «
+
+ы і ї
+э є
 
 [labels]
 alphabet: АБВ

app/src/main/res/xml/method.xml

@@ -90,6 +90,7 @@
     pt_PT: Portuguese (Portugal)/qwerty
     ro: Romanian/qwerty
     ru: Russian/russian
+    ru: Russian (Extended)/russian_extended
     ru: Russian (Student)/russian_student
     si_LK: Sinhala (Sri Lanka)/sinhala # This is a preliminary keyboard layout.
     sk: Slovak/qwerty
@@ -107,6 +108,7 @@
     tr: Turkish/turkish
     ur_PK: Urdu Pakistan
     uk: Ukrainian/ukrainian
+    uk: Ukrainian (Extended)/ukrainian_extended
     uz_UZ: Uzbek (Uzbekistan)/uzbek # This is a preliminary keyboard layout.
     vi: Vietnamese/qwerty
     zu: Zulu/qwerty
@@ -912,6 +914,16 @@
             android:imeSubtypeExtraValue="KeyboardLayoutSet=MAIN:russian,SupportTouchPositionCorrection,EmojiCapable"
             android:isAsciiCapable="false"
     />
+    <subtype android:icon="@drawable/ic_ime_switcher"
+            android:label="@string/subtype_generic_extended"
+            android:subtypeId="0x91f35a0b"
+            android:imeSubtypeLocale="ru"
+            android:languageTag="ru"
+            android:imeSubtypeMode="keyboard"
+            android:imeSubtypeExtraValue="KeyboardLayoutSet=MAIN:russian_extended,SupportTouchPositionCorrection,EmojiCapable"
+            android:isAsciiCapable="false"
+            
+    />
     <subtype android:icon="@drawable/ic_ime_switcher"
             android:label="@string/subtype_generic_student"
             android:subtypeId="0x1bc335d0"
@@ -1064,6 +1076,15 @@
             android:imeSubtypeExtraValue="KeyboardLayoutSet=MAIN:ukrainian,EmojiCapable"
             android:isAsciiCapable="false"
     />
+    <subtype android:icon="@drawable/ic_ime_switcher"
+            android:label="@string/subtype_generic_extended"
+            android:subtypeId="0x49dc95e4"
+            android:imeSubtypeLocale="uk"
+            android:languageTag="uk"
+            android:imeSubtypeMode="keyboard"
+            android:imeSubtypeExtraValue="KeyboardLayoutSet=MAIN:ukrainian_extended,EmojiCapable"
+            android:isAsciiCapable="false"
+    />
     <subtype android:icon="@drawable/ic_ime_switcher"
             android:label="@string/subtype_generic"
             android:subtypeId="0x1e8349fc"