Merge pull request #22 from sakapon/master

v1.2.48 master request
Add install.ps1 to NuGet package
Add methods to try connection
Update test methods
Add utility methods to try connection
Add test scenario
Add test scenario
Add test methods
Update test methods
Add test scenario
Update test methods
Update test methods
Add test scenario
Add ReadBlocksWithoutEncryption method
Refactor
Add ReadBlocksWithoutEncryption method
Add test methods
Add FelicaServiceCode class
Delete test classes
Replace service codes with constants