Changes

Summary

1. Create IPermissionHolder interface (commit: 40b3759) (details)
2. Use IPermissionHolder in Member and Role Remove duplicate methods (commit: 772a335) (details)

Commit 40b375994e7acd3abe13f58101658b917d6d66bd by jason.e.cobb Create IPermissionHolder interface (commit: 40b3759)
	src/main/java/net/dv8tion/jda/core/entities/IPermissionHolder.java
Commit 772a335cd8bb6a6561eb62eab645734cc6c09232 by jason.e.cobb Use IPermissionHolder in Member and Role Remove duplicate methods (commit: 772a335)
	src/main/java/net/dv8tion/jda/core/entities/Role.java (diff)
	src/main/java/net/dv8tion/jda/core/entities/Member.java (diff)