[EN .NET] Workaround for TimexProperty.ToString() to not crash on Dat… …eTimeRanges (microsoft#2894) * Workaround for TimexProperty.ToString() to not crash on DateTimeRanges * Add TODO for fixing the TimexProperty date range representation properly according to review

[EN DateTimeV2] Adding specs to document supported cases mentioned in… … recent issues (microsoft#2825) * Adding specs to document supported cases mentioned in recent issues * Re-gen resources across platforms.

[SV Sequence] Update patten to remove invalid escaping (microsoft#2782) 

Adding missing headers and minor fixes (microsoft#2676) * Modifying base time of day resolution code to improve re-use and facilitate changing policy. * Adding spec for reported misspelt English number case. * Adding holiday variations in German. * Add missing code file headers across platforms. * Fixing Flake8 failures. * Removing null-coalescing assignment operator due to issue with .Net Core 2.1.

Improvements to handling multiple number formats (microsoft#2623) * Recognize "hundert" and "tausend" by themselves as numbers in German. * FP filter for year in float number. * Adding sample lists of variant cultures that differ from default in handling number separators. * Cleanup of multi decimal separators code. * Fixing bug in assigning subtype for numbers like "1.2b". * Exposing Spanish.Mexican as culture as workaround before refactoring of model config for culture/requestedCulture. * Extra separator variant support and test cases in es-MX. * Re-gen resources across platforms.

Maintenance update of auto-gen resources and minor changes (microsoft… …#2524)

[ZH DateTimeV2] Fixed recognizing "年代" year-range/decade in Python/Ja… …vaScript (microsoft#742) (microsoft#2418)

[EN DateTimeV2] Fixed "dinner with mom weekendS" still not recognized (… …microsoft#2326) (microsoft#2345) * [EN DateTimeV2] Fixed "dinner with mom weekendS" still not recognized (microsoft#2326) Co-authored-by: LionbridgeCS2 <v-Fabrizio.Sorba@lionbridge.com>

[EN/ES NumberRange] Fixed compound disjoint range extraction (.NET on… …ly) (microsoft#2227) Co-authored-by: LionbridgeCS2 <v-Fabrizio.Sorba@lionbridge.com>

[.NET] Hindi DateTime Set spec additions (microsoft#2167) Co-authored-by: LionbridgeCS2 <v-Fabrizio.Sorba@lionbridge.com>