Fix issues of NaN and +-0.0 in case of float/double column indexes

[asfimport]

Workaround the float/double column indexes just like we did for statistics in PARQUET-1246.

Reporter: Gabor Szadovszky / @gszadovszky
Assignee: Gabor Szadovszky / @gszadovszky

PRs and other links:

• GitHub Pull Request #515

_{Note: This issue was originally created as PARQUET-1386. Please see the migration documentation for further details.}