lmdb backend: Adds support to select variables using regex
lmdb backend: Adds support to select variables using regex

wafbuild/ModSecurity,defanator/ModSecurity,SpiderLabs/ModSecurity,wafbuild/ModSecurity,defanator/ModSecurity,wafbuild/ModSecurity,SpiderLabs/ModSecurity,defanator/ModSecurity,SpiderLabs/ModSecurity