MySQLColumn support integer unsigned and zerofill properties

[roxblnfk]

Implements #65 feature
It is an alternative for #66

[codecov]

Codecov Report

Merging #88 (691e786) into 2.x (19e42df) will decrease coverage by 0.24%.
The diff coverage is 85.56%.

@@             Coverage Diff              @@
##                2.x      #88      +/-   ##
============================================
- Coverage     94.46%   94.22%   -0.25%     
- Complexity     1588     1620      +32     
============================================
  Files            96       98       +2     
  Lines          4356     4432      +76     
============================================
+ Hits           4115     4176      +61     
- Misses          241      256      +15     

Impacted Files	Coverage Δ
src/Config/ConnectionConfig.php	35.71% <ø> (ø)
src/Config/DriverConfig.php	100.00% <ø> (ø)
src/Driver/Postgres/Schema/PostgresColumn.php	92.68% <ø> (-0.35%)	⬇️
src/Driver/SQLite/Schema/SQLiteColumn.php	100.00% <ø> (ø)
src/Schema/Traits/ColumnAttributesTrait.php	71.42% <71.42%> (ø)
src/Schema/AbstractColumn.php	96.55% <88.23%> (-0.85%)	⬇️
src/Config/RestoreStateTrait.php	100.00% <100.00%> (ø)
src/Driver/MySQL/Schema/MySQLColumn.php	93.97% <100.00%> (+1.11%)	⬆️
src/Driver/SQLServer/Schema/SQLServerColumn.php	95.36% <100.00%> (+0.06%)	⬆️
src/Schema/Attribute/ColumnAttribute.php	100.00% <100.00%> (ø)
... and 1 more

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