quickeydb 1.0.3+3

A new Flutter SQLite Wrapper.

[1.0.3+33]

• Database Transaction - Documentation / Examples
• Database Batch - Documentation / Examples
• Updated example project
• Android, IOS, Windows and Linux tested and tried.

[1.0.2+2]

• clear build warnings.
• now using collection and sqflite_common_ffi packages
• Added Code of conducts and Contribution instructions

[1.0.0+1]

• initial release
• current version (1.0.0+1)