Fix argument order

`gethash` takes key as first argument and hash as second argument.
using string interplation at G1_Function
python and bun supports StringInterpolation
adding test_bun
Merge pull request #71 from masakiishii/RGenerator

fixed IntArray
adding release.PythonGenerator
Merge branch 'master' of github.com:libbun/libbun
adding Init in Parser
adding self-assignment and incremental/decremental operators
update shell grammar and add test case
Merge pull request #72 from sekiguchi-nagisa/master

update shell grammar and add test case
adding BashGenerator and VBAGenerator
Fix JS Generation
enable do/while statement
adding ParseExpression to construct sugar nodes
fix lua generator
fix unary +

add map.get

fix + operator
add python parser test
renewal RegExp parser
update playground & change styles
Merge pull request #75 from nikuuchi/lua

fix lua generator