Extend the refactoring into extensions. Clean up stray newlines.

FossilOrigin-Name: 7a876209a678a34c198b54ceef9e3c041f128a14dc73357f6a57cadadaa6cf7b

Add short script ext/fts3/tool/fts3cov.sh. To help measure test-coverage of
fts3 source code.

FossilOrigin-Name: ee9588e873ffebcaa177957950cbb14924e154c391ed7f687116065064ff11b0

Compilation fix for a C99-ism in the 'fts3view' tool.

FossilOrigin-Name: bedb88a4b9c808ea781ae69058399a1a3a3d15fa

Fix some more harmless compiler warnings.

FossilOrigin-Name: 18f531e1cf3c8bb986d912c9c5e3f5698360c93e

Improvements to the MSVC build. Fix harmless compiler warnings. Enable use of 'stdcall'.

FossilOrigin-Name: 737630b87314283b2c38790ace9d25ec05f81f4a

Fix harmless compiler warnings in the fts3view utility program that can occur with MSVC.

FossilOrigin-Name: 1cec1e030035e5253fb7ebbdfe5c1a3029e4e29b

Fix a division-by-zero error in the fts3view utility program. Add the
fts3view utility program to the "main.mk" makefile.

FossilOrigin-Name: 64f02699b4bd747e4c2f0debf72d37ec275137d8

Add output of PRAGMAs auto_vacuum and encoding to the "schema" command of the
fts3view utility program.

FossilOrigin-Name: e31076319363a46905836880765bae3bf204ed19

In the fts3view utility, label the blank segments used to mark the end of a
segment sequence for a level/idx as "null". Improve the alignment of root
segment names.

FossilOrigin-Name: 04aea0245e418

In the fts3view utility, label the blank segments used to mark the end of a
segment sequence for a level/idx as "null". Improve the alignment of root
segment names.

FossilOrigin-Name: 04aea0245e4183fef3664609f5a6353b65d71a85

show more ...

Enhance the fts3view tool with the big-segment command and fix a bug in the
display of doclists.

FossilOrigin-Name: e9436d8038e5a0d1ba992a77d1064d4a55595f57

Enhance fts3view to show decodes of segments and doclists.

FossilOrigin-Name: 6d09de231b68dd9520d99c65d133f26e90eb784f

Add the fts3view utility program.

FossilOrigin-Name: f936c8ea16d21345fd1622272dc7e9850acb2493