Move ST_GraphTest to h2spatial-ext
Start working on new ST_Graph
Fix IntelliJ automatic rename
Finish firstFirstLastLast method
Add makeEnvelopes method
Add nodes method
Add edges method
Fix node order in one test
Add checkNode method in test
Add checkEdge method and fix first test
Format tests with checkEdge method
Add an auto_increment primary key to all inputs
Take care of zero tolerance
Fix problem with zero tolerance
Check geom type and fix bug with null nodes
Fix almost all ST_Graph tests

TODO: Orient by slope
Add test for negative tolerances
Add primary key tests (0 and composite)
Implement orientation by slope
Fix all GraphCreatorTests (node ids 3<->4 swapped)