* remove __pikaMain from StdTask
* support run arg from other context(file name space)
* format
* use def_context in callback
* supporting def_context, not ok
* test for format with tuple is ok
* 'format'%var is ok (tuple var is not ok)
* rename _cformat to cformat()
* optimize the memory usage of format_list
* add string-test.cpp
* cformat() is ok
* fix variable par load issue
* use test_common.h
* use test_common to simplify the gtest case
* Merge branch 'master' into dev
* fix float->double for bytecodegen
* update to /package
* Use double in C for float in python
* update pre-compiler
* test passed for variable pars of print()
* variable pars is tested ok for print()
* skip arg_num check for variable
* support *val in the preCompiler
* add file
* Merge branch 'dev' of https://gitee.com/lyon1998/pikascript into dev
* fix warning
* both update ByteCodeGen
* use super instead of parent
* create PikaList C list struct
* use args inner the PikaStdData.List()
* use PikaDict in PikaStdData.Dict()
* support dict in c
* support dict in c
* clean Tinyobj
