v0.7.0

• DOCS: added "Awesome Flutter" shield
• CHORE: migrated to flutter_lints with additional rules (#99)
• CI: added check for proper PR title based on conventionalcommits.org (#101)
• STYLE: fix all lint issues (#100)
• DOCS: added api-doc links to quick links section
• BREAKING REFACTOR: removed all deprecated members (#102)
• BREAKING REFACTOR: moved all files to src/ dir (#103)
• DOCS: remove note for flutter v1 and minor formatting
• FEAT: synced members of Scaffold and AppBar (#104)
• DOCS: start doc-comments with a single sentence summary (#105)
• CI: using flutter analyze and checking correct formatting (#107)
• FEAT: added double frontLayerElevation member (#109)
• CI: restructured, cleaned, added pub.dev checks (#108)
• CHORE: default gitignore for idea added