EPIC: Add support for more data types

[xmnlab]

• Integer kinds:
  • [x] #31
  • [x] #32
  • [x] #34
  • [x] #33
• Real kinds:
  • [x] #35
  • [x] #36
• Complex kinds
  • [x] #37
  • [ ] #38
• Character
  • [ ] #39
  • [ ] #40
• Logical kinds:
  • [ ] #41
• Date/Time kinds
  • [ ] #46
  • [ ] #47
  • [ ] #49
  • [ ] #48
• Other types
  • [ ] #42
  • [ ] #43
  • [ ] #44
  • [ ] #45
  • [ ] #50

we need also to expand these data types to Literals and Variables, so we can have a real implementation for each data type and create tests and tutorials for that.

note: Some inspiration: https://docs.lfortran.org/en/asr/asr_nodes/kinds_nodes/kinds/

Details

• For each type, we need to create Literals, and maybe we need to update the BinaryOp and/or UnaryOp
• also it would be nice to have 1 test file for each type, so we could ensure to test properly each type