Added specification transformation

[leventeBajczi]

This adds support for pre-transforming between various specifications.

[sonarqubecloud]

Quality Gate failed

Failed conditions
53.7% Coverage on New Code (required ≥ 60%)

See analysis details on SonarCloud

[github-actions]

Benchexec test report for a selection of SV-Benchmarks (correct / incorrect / all):

Rundefinition	BOUNDED	CEGAR	HORN
SV-COMP25_no-data-race	❓ (0 / 0 / 31) HTML/CSV	❗ (5 / 1 / 10) HTML/CSV	❓ (0 / 0 / 31) HTML/CSV
SV-COMP25_no-overflow	❓ (0 / 0 / 4) HTML/CSV	❓ (0 / 0 / 4) HTML/CSV	❓ (0 / 0 / 4) HTML/CSV
SV-COMP25_termination	✅ (2 / 0 / 8) HTML/CSV	✅ (1 / 0 / 9) HTML/CSV	✅ (2 / 0 / 10) HTML/CSV
SV-COMP25_unreach-call	✅ (9 / 0 / 226) HTML/CSV	❗ (14 / 3 / 144) HTML/CSV	❗ (17 / 1 / 239) HTML/CSV
SV-COMP25_valid-memcleanup	❓ (0 / 0 / 31) HTML/CSV	❓ (0 / 0 / 34) HTML/CSV	❓ (0 / 0 / 33) HTML/CSV
SV-COMP25_valid-memsafety	❓ (0 / 0 / 172) HTML/CSV	✅ (16 / 0 / 109) HTML/CSV	❓ (0 / 0 / 161) HTML/CSV