Allows use of slightly optimized variants that check if they have to use
the heavier vte parser. Tries to avoid unnnecessary allocations. Initial
performance characteristics proven out in #4378.
Also reduces boilerplate with right-ward drift.
* Test commands for proper names and search terms
Assert that the `Command.name()` is equal to `Signature.name`
Check that search terms are not just substrings of the command name as
they would not help finding the command.
* Clean up search terms
Remove redundant terms that just replicate the command name.
Try to eliminate substring between search terms, clean up where
necessary.
* dabase access commands
* select expression
* select using expressions
* cargo fmt
* alias for database
* database where command
* expression operations
* and and or operators
* limit and sort by commands
* database commands
* db commands
* filesystem opens sqlite file
* clippy error
* corrected error in ci file
* removes matrix flag from ci
* flax matrix for clippy
* add conditional compile for tests
* add conditional compile for tests
* correct order of command
* correct error msg
* correct typo
