* convert logger to output a query graph
* avoid duplicating branch paths to shrink output graph
* separate different branching paths
* include all branches which found unique states
* track the reason for ending each branches execution
* track the result type of each branch
* make edges rely on history index instead of program_id, to avoid errors when looping
* add state diff to query graph
* drop redundant table info
* rework graph to show state changes, rework logger to store state snapshots
* show state on the previous operation
* gather duplicate state changes into clusters to reduce repetition
* draw invisible connections between unknown instructions by program_i
* clean up dot format string escaping
* add test case from #1960 (update returning all columns)
* add tests for #2939 (update returning only the PK column)
* allow inserting into a table using only the index
* improve null handling of IfNull, fix output type of NewRowId
* add NoResult nodes for branches which don't log a result, as a sanity check
* add short-circuit to all logging operations
* remove duplicate logging checks, and make logging enabled/disabled consistently depend on sqlx::explain instead of sqlx for capture & sqlx::explain for output
* add failing test for awkwardly nested/filtered count subquery
* handle special case of return operation to fix failing test
* require trace log level instead of using whatever log level statement logging was configured to use
* Add tracing dep
* Switch over basic events
* Switch over dynamically enabled events
* Fix missing SocketAddr formatting
* More format fixing
* refactor: Apply tracing changes to new crate structure
