v0.5.0

ec53df4 Upgrade to AGP 3
985ad34 Upgrade to Gradle 4.3
c241c5c Add layout-hierarchy-litho module for Litho Support in LayoutHierarchy Dumps
ac75ab9 Rewrite Entire Layout Hierarchy Dump System
553e7d5 Include more TextView Information in Hierarchy Output
490fcfc Add param for custom python executable
f0c704f Fix WindowAttachmentTest for API 26+
3f48c9a Implement a View Hierarchy Overlay for Screenshots
16d0b03 Change Dump Output to use JSON
49b0bb5 Spruce up Results Page (#117)
10acf3b Add Dark Background Toggle Button (#116)