feat(goctl):Add ignore-columns flag

[kesonan]

Added --ignore-columns, -i flag to specify the columns that need to be ignored when inserting or updating rows, for example: you need to ignore the create_time and update_time columns, you can use --ignore-columns, -i flag for model generation command reference is as follows

# generated from sql file
$ goctl model mysql ddl --src $sql_file --dir $output -i 'create_time' -i 'update_time'
# or use comma splitter
# $ goctl model mysql ddl --src $sql_file --dir $output -i 'create_time,update_time'

# generated from dsn
$ goctl model mysql datasource --url $dsn --table $patterns --dir $output -i 'create_time' -i 'update_time'
# or use comma splitter
# $ goctl model mysql datasource --url $dsn --table $patterns --dir $output -i 'create_time,update_time'

[kevwan]

Is it better to support -i 'create_time,update_time'?

[kesonan]

Is it better to support -i 'create_time,update_time'?

Done

[yogibaba]

Execution on PostgreSQL, gives Error: unknown flag: --ignore-columns