JusoVM constructor Null safety

1. farmershands
2. juso_vm
3. JusoVM
4. JusoVM constructor

JusoVM class

1. Constructors
2. JusoVM
3. Properties
4. errorMessage
5. hashCode
6. jusoList
7. jusoResult
8. keyword
9. page
10. runtimeType
11. Methods
12. fetchJuso
13. noSuchMethod
14. resetJusoList
15. toString
16. Operators
17. operator ==
18. Static properties
19. jusoKey