Fix RegexValidator allowing partial matches

[ModernMAK]

Fix RegexValidator allowing partial matches

Now RegexValidator must require a full match on the target string to return a successfull match

Description

E.G.
Regex = "A[a-z]"

Would match:

• "Alpha"
• "breAk"
• "somereallybadinputAz"

Instead of the expected:

• "Ab"
• "Ar"
• "Az"

This also allowed any regex with * to match all inputs, as it would find a match of no length, and accept that as a successful match.

[CLAassistant]

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