databases/sqlitestudio: Update 3.1.1 -> 3.2.0

Changelog:
https://sqlitestudio.pl/index.rvt?act=changelog

Port changes:

• Use DISTVERSION
• Update LICENSE_FILE
• Add options group
• Simplify option handling such that the plugins list is in only one place
• New plugin was added: MultiEditorImage
• Remove USE_LDCONFIG, not needed