Feature/176 support timestamp with precission (#177)

* update keeper and prepare new version

* fix deprecation warning

* fix typo

* add precision to Timestamp types with default constructors for backwards compatibility

* Add methods for column definition for TS with precision

* required for type rendering

* render timestamp types

* Test type rendering

* fix comment

* fix typo

* support specifying precision

* test cases

* add javadoc

* add change log

* cleanup

* add suppress warnings

* avoid duplications

* update versions

* Remove unwanted files

* fix release date

* introduce error_code_config.yml

---------

Co-authored-by: Christoph Pirkl <[email protected]>

Author: antonireus

.gitattributes

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