classlib

- define global.SCScript for test
- use SCScript.install in classlib
- remove classlib/Math/bop
- fix bop for Integer/Float
- move files from sc/lang/classlib to sc/classlib
- remove installer files from sc/classlib
- fix build task
- build v0.0.30
Merge pull request #39 from mohayonao/classlib

classlib