New Validation Functionality

New Validation functionallity added (addresses #39):

• ST_IsValid ( with or without flags integer argument)
• ST_IsValidReason ( with or without flags integer argument)
• ST_MakeValid (with or without keepcollapsed=true|false arguement)
• PROJ4 Packaging fixes

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Full Changelogs:

• 0.5.12...0.5.16
• 0.6.10...0.6.14
• 0.7.8...0.7.12
• 0.8.4...0.8.8

Dremio Compatibility: 23.1.x,23.0.x, 22.1.x, 22.0.x