Default Column[LocalDateTime] instance lose nanoseconds precision

[oyvindberg]

I'll submit this in the same tradition as #408 and #325 .

I updated the repro from #408 to LocalDateTime to show the same problem again.

https://github.com/oyvindberg/play-anorm-nano-precision

[info] - should insert a LocalDateTime WITHOUT nano precision and return the inserted value
[info] - should insert a LocalDateTime instant WITH nano precision and return the inserted value *** FAILED ***
[info]   2021-01-06T09:22:31.222 was not equal to 2021-01-06T09:22:31.222456 (ZonedDateTimeRepositoryTest.scala:62)