Enhancement the virtual table interface to support LIKE, GLOB, and REGEXP

operators.  Also add the sqlite3_strlike() interface, which might be useful
as part of the implementation of LIKE on some virtual tables.

FossilOrigin-Name: a6bfd4692c3f8b107546fbcaeb985d2c1817b3c1

diff --cc manifest
index 36e5b27570e9228536128c6326f856ce563a5c3d,f37520206d5dc6f478c3a1672f1513ca233533c2..85f16212079d99cb791948bfc593f4cb56886f17
--- 1/manifest
--- 2/manifest
+++ b/manifest
@@@ -1,5 -1,5 +1,5 @@@
- C Remove\sfrom\sos_unix.c\spointless\slogic\sthat\stries\sto\sprevent\sa\srecurrence\sof\na\swarning\smessage\sthat\scan\sonly\soccur\sonce.
- D 2015-11-24T16:40:23.118
 -C Add\sthe\ssqlite3_strlike()\sinterface,\swhich\smight\sbe\suseful\sfor\simplementing\nLIKE\soperators\son\svirtual\stables.
 -D 2015-11-24T21:23:59.705
++C Enhancement\sthe\svirtual\stable\sinterface\sto\ssupport\sLIKE,\sGLOB,\sand\sREGEXP\noperators.\s\sAlso\sadd\sthe\ssqlite3_strlike()\sinterface,\swhich\smight\sbe\suseful\nas\spart\sof\sthe\simplementation\sof\sLIKE\son\ssome\svirtual\stables.
++D 2015-11-25T01:57:42.585
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  F Makefile.linux-gcc 7bc79876b875010e8c8f9502eb935ca92aa3c434
  F Makefile.msc e928e68168df69b353300ac87c10105206653a03
@@@ -1404,7 -1405,7 +1405,8 @@@ F tool/vdbe_profile.tcl 246d0da094856d7
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  F tool/warnings.sh 48bd54594752d5be3337f12c72f28d2080cb630b
  F tool/win/sqlite.vsix deb315d026cc8400325c5863eef847784a219a2f
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diff --cc manifest.uuid
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--- 1/manifest.uuid
--- 2/manifest.uuid
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