added all operators
Merge branch 'master' of https://github.com/liricooli/Compi

# By Sveta Oksen (1) and liricooli (1)
# Via Sveta Oksen
* 'master' of https://github.com/liricooli/Compi:
  Removed usage of Symbol class
  Delete Lexer.java

Conflicts:
	jflex-demo.flex
	src/IC/Parser/Lexer.java