Impelement at_least, at_most, times, with, verify reset methods
Move export methods to class methods and Add verify_result method

verify and reset methods move to class methods.
Add returns verify result method.
Tests were divided.
Use Test::Tester for TAP output test
Delete unnecessary test file
Fix Readme
Merge pull request #2 from ka2u/implement-methods

Impelement at_least, at_most, times, with, verify reset methods