3.6.4: improve speed

3.6.3: support longer games (#312)

3.6.2: optimize sort (#311)

3.6.1: penalize bad captures (#310)

Enable codeql analysis (#308)

Update version to 3.6.0 (#305)

Release Igel 3.6.0 (#304)

3.5.10: singular extension 2 on non pv moves (#303)

fix openbench compilation issues (#302)

enable clang pgo build profile (#301)

enable gcc pgo build profile (#300)

3.5.9: low bound condition in sext (#299)

3.5.8: check beta score in probcut condition (#298)

Store TT entry in standing pat in qsearch (#297)

improve workflow pipeline (#296)