tt
Revert "tt"

This reverts commit dec6480cfd78d16cde88cf4034838a7708b841a2.
changes
changes
testing
Merge branch 'test2'
Added optimiser class and slim/TDO versions of classes
Split classes and interfaces into separate files
Split classes and interfaces into separate files 2
Added TimeAxis-concepts
Added simulator tests
Added simulator service (named pipe) test to test contract
Improved simulation test and test fixture, and class naming