feat: optimize exception handling (#43)

feat: show better error message (#42)

feat: fix "ABAC" model enforceEx error (#40)

feat: sync dependency versions with jCasbin (#38)

feat: upgrade jcasbin version to fix KeyMatch5 model bug and add test…

… cases (#37)

feat: fix result for "ABAC with policy rule" model (#34)

feat: fix bug that unable to fetch CLI version (#30)

* feat: support "-v/--version" to get version of casbin-java-cli

* fix: unable to fetch CLI version

feat: support "-v/--version" to get version of casbin-java-cli (#28)

feat: remove file extension limit for model and policy files (#26)

* fix: processing line breaks in parameters

* refactor: add content format validation for model and policy input

* feat: update README.md

feat: support -h\--help option (#21)