Add more tests
Enhance testing framework, add function assert-PDB-true
Enhance some tests: make test files order independent
Fix tests broken by recent changes to GIMP
Test framework and tests in Scheme, and portable.
Work in progress. Expect commits for more tests.
Testing framework is stable, more or less.
Add more tests
Add tests layer and layerMask.
test Item methods
More tests, selection
Test memory, vector in TS.
More tests char functions
sharp expr tests
