Increase version to 1.0.8

Upgrade to Unity 2021.3.6f1
Added Ray intersection utility

Increase version to 1.0.7

1.0.6

Renamed StringUtils to TextUtility

Added new DictionaryToString function

1.0.4

Fix compile error for older unity version

Added MakeOrthonormalVectors

Minor fixes

Bias function

Fix UPM link