removed id from Task Class

Remove id from Task Class
Refactored Comments in Task Class
Updated Classpath for TestCases

Added new path to store all testcases
Added basic add task function

Added add task function with its corresponding test cases
Merge remote-tracking branch 'origin/create_logic'
Created Logic class
Merge remote-tracking branch 'origin/master' into search_logic
Merge remote-tracking branch 'origin/master' into search_logic
Added Search Base On Description

Added Search function base on description, accompanied with test cases
Added Search Base on Date Period

Added Search with Date Period + Testing Unit
Added Search Base On Description

Added Search function base on description, accompanied with test cases
Added Search within date period

add search within date period with accompanying test
update_logic