Add Qt example files

Author: vslavik

tests/qt/clock_it.ts

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+<?xml version="1.0" encoding="utf-8"?>
+<!DOCTYPE TS>
+<TS version="2.1" language="it" sourcelanguage="en">
+<context>
+    <name>Main</name>
+    <message>
+        <location filename="../Main.qml" line="15"/>
+        <source>Digital Clock</source>
+        <translation>Orologio digitale</translation>
+    </message>
+    <message numerus="yes">
+        <location filename="../Main.qml" line="33"/>
+        <source>%n second(s)</source>
+        <comment>seconds</comment>
+        <translation>
+            <numerusform>%n secondo</numerusform>
+            <numerusform>%n secondi</numerusform>
+        </translation>
+    </message>
+    <message>
+        <location filename="../Main.qml" line="43"/>
+        <source>Locale: %1</source>
+        <translation>Impostazioni locali: %1</translation>
+    </message>
+</context>
+</TS>

tests/qt/hello.ts

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+<?xml version="1.0" encoding="utf-8"?>
+<!DOCTYPE TS>
+<TS version="1.1" language="cs">
+<context>
+    <name>QPushButton</name>
+    <message>
+        <source>Hello world!</source>
+        <translation>Ahoj světe!</translation>
+    </message>
+    <message>
+        <source>File</source>
+        <translation>Soubor</translation>
+        <comment>Menu</comment>
+        <extracomment>Developer's comment</extracomment>
+        <translatorcomment>Translator's comment</translatorcomment>
+    </message>
+    <message numerus="yes">
+        <source>Hello %n world(s)!</source>
+        <translation>
+            <numerusform>Ahoj %n světe!</numerusform>
+            <numerusform>Ahoj %n světy!</numerusform>
+            <numerusform>Ahoj %n světů!</numerusform>
+        </translation>
+    </message>
+</context>
+<context>
+    <name></name>
+    <message id="this_is_another_id">
+        <source>An unfinished string</source>
+        <translation type="unfinished"></translation>
+    </message>
+    <message>
+        <source>Hi!</source>
+        <translation type="unfinished">Čau!</translation>
+    </message>
+    <message id="format_string">
+        <source>Count: %1</source>
+        <translation>Počet: %1</translation>
+    </message>
+</context>
+</TS>