[FEATURE] Add configuration options to FloatConverter

Converting a string to a float value needs some specific format of the
string (no thousand separator and '.' as decimal point).

So it should be possible to define some pre-sanitation for the
FloatConverter to be able to convert strings like 123,42 to float.

This patch introduces configuration options and sanitizes the string
before parsing it to float.

Resolves: #75827
Releases: master
Change-Id: I716a5a6d3b7dd4f9f8dd0f01db850a2ee82cd376
Reviewed-on: https://review.typo3.org/47829


Reviewed-by: Stephan Großberndt <stephan@grossberndt.de>
Tested-by: Stephan Großberndt <stephan@grossberndt.de>
Reviewed-by: Philipp Gampe <philipp.gampe@typo3.org>
Tested-by: Philipp Gampe <philipp.gampe@typo3.org>