Add the sqlite3_value_dup() and sqlite3_value_free() interfaces.

Use these interfaces to enhance R-Tree to add the
sqlite3_rtree_query_info.apSqlParam field.

FossilOrigin-Name: c1814242e6ce035d486cfbad5a1f4b49aa8898f3

diff --cc manifest
index 405292cc6922622cf4f2937f8625fb5d2742a50b,2d270a2d6d97a27a581249beb8deee12c1c824dd..4f499d8cf96ffe273625032c2787adccc13b3bf8
--- 1/manifest
--- 2/manifest
+++ b/manifest
@@@ -1,5 -1,5 +1,5 @@@
- C The\sSRT_Table\stype\sfor\sthe\sSelectDest\sobject\sis\snow\sjust\san\sSRT_EphemTab\sfor\nwhich\sthe\sephemeral\stable\shas\salready\sbeen\sallocated.
- D 2015-05-22T17:29:27.432
 -C Make\ssure\ssqlite3_value_dup()\sworks\scorrectly\seven\sfor\ssqlite3_value\nobjects\sthat\sare\smarked\sSQLITE_STATIC.
 -D 2015-05-22T21:04:54.462
++C Add\sthe\ssqlite3_value_dup()\sand\ssqlite3_value_free()\sinterfaces.\s\nUse\sthese\sinterfaces\sto\senhance\sR-Tree\sto\sadd\sthe\nsqlite3_rtree_query_info.apSqlParam\sfield.
++D 2015-05-22T21:12:59.931
  F Makefile.arm-wince-mingw32ce-gcc d6df77f1f48d690bd73162294bbba7f59507c72f
  F Makefile.in 0a6ae26396ec696221021780dffbb894ff3cead7
  F Makefile.linux-gcc 91d710bdc4998cb015f39edf3cb314ec4f4d7e23
@@@ -1278,7 -1278,7 +1278,8 @@@ F tool/vdbe_profile.tcl 67746953071a9f8
  F tool/warnings-clang.sh f6aa929dc20ef1f856af04a730772f59283631d4
  F tool/warnings.sh 0abfd78ceb09b7f7c27c688c8e3fe93268a13b32
  F tool/win/sqlite.vsix deb315d026cc8400325c5863eef847784a219a2f
- P b9fb95194d4f7c535f1d175fd2e18d69d76e8fc4
- R b9824a32563c5717dba8f6fd0e248f54
 -P 95edcf5010ecb8edd8eb74279c4766f9b655d4a2
++P b9727e6bbfc3c62c601227e86e62f2f39792fd1d f332ffc39b7a17fd6254d8dc699293a57a508ba0
+ R 45d42bfafc5b3542d7e7526b77707d5f
++T +closed f332ffc39b7a17fd6254d8dc699293a57a508ba0
  U drh
- Z 6ae4be6461472ee1a411850c6b256793
 -Z f0fdfb1783681230e2e7fa3690d67253
++Z 2115a6dbeb76c1fe460ac17d9b6aaa11

diff --cc manifest.uuid
index f4cd12aa80d8f23f440f7c66da267d23e7d43d54,ea8a4aa01ad267e58058497ad451f03b68eec5ee..b0343b532d8f5e88c21ca636564835e25e03b2a7
--- 1/manifest.uuid
--- 2/manifest.uuid
+++ b/manifest.uuid
@@@ -1,1 -1,1 +1,1 @@@
- b9727e6bbfc3c62c601227e86e62f2f39792fd1d
 -f332ffc39b7a17fd6254d8dc699293a57a508ba0
++c1814242e6ce035d486cfbad5a1f4b49aa8898f3