Add the "recover" extension in ext/recover/, for salvaging data from corrupt databases.

FossilOrigin-Name: a820792548da596ed0f8ab3fd1c04ec16647abbe51a2a5aac9e17c4f58be6d97

diff --cc manifest
index 7edad4429da231a9ba89562e2014d103a5c77d3c,848d7b0c4ef40d4d22f2c8879517b89d898e3fc8..d3883a235a279662197b6ee6068bf4ee90c01475
--- 1/manifest
--- 2/manifest
+++ b/manifest
@@@ -1,5 -1,5 +1,5 @@@
- C Make\sthe\sshell\s.recover\scommand\sand\sthe\sdbdata.c\smodule\smore\srobust\sin\sthe\sface\sof\scorrupted\sdatabases.
- D 2022-10-26T18:04:34.995
 -C Remove\san\sundefined\sleft-shift\soperation\sfrom\sthe\srecover\sextension.
 -D 2022-10-26T18:29:19.827
++C Add\sthe\s"recover"\sextension\sin\sext/recover/,\sfor\ssalvaging\sdata\sfrom\scorrupt\sdatabases.
++D 2022-10-26T18:41:12.936
  F .fossil-settings/empty-dirs dbb81e8fc0401ac46a1491ab34a7f2c7c0452f2f06b54ebb845d024ca8283ef1
  F .fossil-settings/ignore-glob 35175cdfcf539b2318cb04a9901442804be81cd677d8b889fcc9149c21f239ea
  F LICENSE.md df5091916dbb40e6e9686186587125e1b2ff51f022cc334e886c19a0e9982724
@@@ -386,6 -385,22 +385,22 @@@ F ext/rbu/rbuvacuum4.test a78898e438a44
  F ext/rbu/sqlite3rbu.c 8737cabdfbee84bb25a7851ecef8b1312be332761238da9be6ddb10c62ad4291
  F ext/rbu/sqlite3rbu.h 1dc88ab7bd32d0f15890ea08d23476c4198d3da3056985403991f8c9cd389812
  F ext/rbu/test_rbu.c 03f6f177096a5f822d68d8e4069ad8907fe572c62ff2d19b141f59742821828a
 -F ext/recover/dbdata.c a7b2fc6750139a7bb3455d784063d43f98c28f226b7f84d88270f1c083dc6b72
++F ext/recover/dbdata.c a7b2fc6750139a7bb3455d784063d43f98c28f226b7f84d88270f1c083dc6b72 w ext/misc/dbdata.c
+ F ext/recover/recover1.test 93acc42f95259f8b34050ad75873685a305da76d6cb1727d003f45157a4a6402
+ F ext/recover/recover_common.tcl 6679af7dffc858e345053a91c9b0a897595b4a13007aceffafca75304ccb137c
+ F ext/recover/recoverclobber.test 294dcc894124ab4ca3a7b35766630742a3d25810fceac22220beb64f70a33a60
+ F ext/recover/recovercorrupt.test 6540aae95e17398dd70b44518367fd56588c44962cb276d2623a0fedba9efe9e
+ F ext/recover/recovercorrupt2.test dff0c9f52888ae5956b1892ce502db42e6f51a666230369251bbbca923be541f
+ F ext/recover/recoverfault.test 3a0a32b9fc216592b97775d69220695b0926980c0f7424b7a59144e47d7cb568
+ F ext/recover/recoverfault2.test 321036336af23e778a87f148c4cc4407f88fbdab1fd72ddb661669be9020d36b
+ F ext/recover/recoverold.test 46e9d99b595fac583d4c67f74d7d89c20a435c752ef6eeb3e918b599940c88e0
+ F ext/recover/recoverpgsz.test 93e970eab05e4e89f8fd6b1bd23f9ec137ea09857e66ba0d4d27a83cd1ba4a89
+ F ext/recover/recoverrowid.test 1694a1a5526d825f71279f3d02ab02a1ee4c5265de18858bf54cb8ec54487ac8
+ F ext/recover/recoverslowidx.test f356bb9fba7ffd6fc50e045e419464f0129ac6e24decf6e919584f79c3493727
+ F ext/recover/recoversql.test f9872ff2114e13ffd8ee31e1de06919f62b9b48bc080191b5bd076d10becb60f
+ F ext/recover/sqlite3recover.c 537bfad4bf9f14fd43d138b988365bb38548fabec3252d3bff719524d907a1da
+ F ext/recover/sqlite3recover.h f698ccc94bd4da38761035415ad08c4549a408491ff9fd5f52d34d2214f64e36
+ F ext/recover/test_recover.c 61ec931e47abca6b2210f46239cafd9f3060741605e3d3c45a7c7a53f63dd957
  F ext/repair/README.md 92f5e8aae749a4dae14f02eea8e1bb42d4db2b6ce5e83dbcdd6b1446997e0c15
  F ext/repair/checkfreelist.c e21f06995ff4efdc1622dcceaea4dcba2caa83ca2f31a1607b98a8509168a996
  F ext/repair/checkindex.c 4383e4469c21e5b9ae321d0d63cec53e981af9d7a6564be6374f0eeb93dfc890
@@@ -2037,8 -2052,8 +2052,8 @@@ F vsixtest/vsixtest.tcl 6a9a6ab600c25a9
  F vsixtest/vsixtest.vcxproj.data 2ed517e100c66dc455b492e1a33350c1b20fbcdc
  F vsixtest/vsixtest.vcxproj.filters 37e51ffedcdb064aad6ff33b6148725226cd608e
  F vsixtest/vsixtest_TemporaryKey.pfx e5b1b036facdb453873e7084e1cae9102ccc67a0
- P 3b5aa50c223ac35c7d73e4629420a01408cd74d19ae5b887f91b7a657d91e026
- R 35ce71983125759a6aec05074aeb42bb
 -P bcf6b48d52c1ce656899f50bd508c0920cae8cf2ef3c0758a7633981f0f0f484
++P 4eef562a00ae988f2426c9af51f4165c0e4cbccd601061664a0c54c19b9cc70f a67082357a2cc348faf8236aafa7f39eb5cb673b1d114a594c6d5bb257f85b73
+ R 1abad855e0472232f0e7862b9a7dd438
  U dan
- Z abadf61b49ea483e6a667d1435917fe4
 -Z 4fb1e189272de9078a5ba7b4ef187b9a
++Z 07060bbf38e0bec12a8e0d42fa98e255
  # Remove this line to create a well-formed Fossil manifest.

diff --cc manifest.uuid
index a88c2839d9402083210e7214c2414e1e2d38b045,af7804ec05066fba13c684b74d834068075cb97d..795f295fb71f2a173bf2d98d83225a3e716d6524
--- 1/manifest.uuid
--- 2/manifest.uuid
+++ b/manifest.uuid
@@@ -1,1 -1,1 +1,1 @@@
- 4eef562a00ae988f2426c9af51f4165c0e4cbccd601061664a0c54c19b9cc70f
 -a67082357a2cc348faf8236aafa7f39eb5cb673b1d114a594c6d5bb257f85b73
++a820792548da596ed0f8ab3fd1c04ec16647abbe51a2a5aac9e17c4f58be6d97