Move qtimageformats over to the new config system

Task-number: QTBUG-44318
Task-number: QTBUG-62259
Change-Id: Ide5c28015c46b12ee3f21d06badd69db8bed1281
Reviewed-by: Kai Koehne <[email protected]>

Author: liangqi

config.tests/jasper/jasper.cpp

@@ -0,0 +1,6 @@
+Further image format options:
+
+  -jasper .............. Enable JPEG-2000 support using the JasPer library [no]
+  -mng ................. Enable MNG support [no]
+  -tiff ................ Enable TIFF support [system/qt/no]
+  -webp ................ Enable WEBP support [system/qt/no]

config.tests/jasper/jasper.pro

@@ -0,0 +1,5 @@
+{
+    "subconfigs": [
+        "src/imageformats"
+    ]
+}