calculator - Java and JavaCC implementations of a calculator EBNF grammar

	Commit message (Expand)	Author	Age
*	[~] Updated the unit tests to take in account the variables	Maël Gassmann	2021-06-11
*	[+] Added StatementParser, [~] Restructured the Parsers	Maël Gassmann	2021-06-11
*	[+] Added JUnit tests (only testign valid expressions as of now)	Maël Gassmann	2021-06-11
*	[+] implemented the 'shell' UI, [~] Small corrections had to be made in the p...	Maël Gassmann	2021-06-11
*	[+] First version of the java calculator	Maël Gassmann	2021-06-11
*	[+] Basic stucture of the java calculator	Maël Gassmann	2021-06-10