DSA 1.1.4

[anmacdonald]

DSA 1.1.4 includes:

• Minumum Runtime Qt SDK version is 100.9.
• Minimum Qt SDK version is Qt 5.15.0.
• Minimum Android SDK version is now 21, target SDK version is 29.
• Fixed erronious "missing file" dialog appearing on startup when opening an MSPK. This was a layer-to-json issue when saving the config.
• Reverted the "ModelSceneSymbol to PictureMarkerSymbol" change. A camera bug was was introduced because a rotation-expression can not be used in place of a heading-expression when working with an OrbitGeoElementCameraController. We will need to park this upgrade until an enhancement is exposed by ArcGISRuntime.
• Fixed bug where layers were not written out to the config when the PackageDirectory key is missing.
• Renamed "master" branch to "main."

[anmacdonald]

@esreli I've addressed your comments. I'll go ahead and take the initiative to merge so I can get the prebuilt binaries out the door today.