(squash and merge) Russian and Ukrainian translations (#1184)

* Activate Ukrainian localization

* Add monero-core_ua.ts and update monero-core_ru.ts

lang/languages.xml

@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
+<?xml version="1.0" encoding="utf-8"?>
 <languages>
 
 <!--
@@ -47,4 +47,5 @@ List of available languages for your wallet's seed:
         <language display_name="Srpski" locale="rs_RS" wallet_language="English" flag="/lang/flags/srbija.png" qs="none"/>
         <language display_name="Català" locale="cat_ES" wallet_language="Catalan" flag="/lang/flags/catalonia.png" qs="none"/>
         <language display_name="Turkish" locale="tr_TR" wallet_language="Turkish" flag="/lang/flags/tr.png" qs="none"/>
+	<language display_name="Українська" locale="uk_UA" wallet_language="English" flag="/lang/flags/ukraine.png" qs="none"/>
 </languages>

monero-wallet-gui.pro

@@ -350,6 +350,7 @@ TRANSLATIONS =  \ # English is default language, no explicit translation file
                 $$PWD/translations/monero-core_rs.ts \ # Serbian
                 $$PWD/translations/monero-core_cat.ts \ # Catalan
                 $$PWD/translations/monero-core_tr.ts \ # Turkish
+                $$PWD/translations/monero-core_ua.ts \ # Ukrainian
 
 CONFIG(release, debug|release) {
     DESTDIR = release/bin

qml.qrc

@@ -132,6 +132,7 @@
         <file>lang/flags/srbija.png</file>
         <file>lang/flags/catalonia.png</file>
         <file>lang/flags/tr.png</file>
+        <file>lang/flags/ukraine.png</file>
         <file>wizard/WizardManageWalletUI.qml</file>
         <file>wizard/WizardRecoveryWallet.qml</file>
         <file>wizard/WizardMemoTextInput.qml</file>