feat: add GetRolesForUserForAllDomains

[00LT00]

Fix: #588

[00LT00]

plz review @PhilippSeitz @hsluoyz @nodece

[PhilippSeitz]

is the matchingFunc supposed to work already, like discussed here #588?

p, admin, *, read, allow
p, admin, *, write, allow
p, member, *, read, allow
p, trudy.custom, trudy_org, write, allow
p, trudy.custom, trudy_org, read, deny

g, alice, admin, alice_org
g, bob, member, alice_org
g, trudy, member, trudy_org
g, trudy, trudy.custom, trudy_org

e, _ := casbin.NewEnforcer(config)
e.GetRoleManager().(*defaultrolemanager.RoleManager).AddMatchingFunc("keyMatch", util.KeyMatch)
result, err := e.GetImplicitPermissionsForUserForAllDomains(subject)
expected := [][]string{
	{"member", "trudy_org", "read", "allow"},
	{"trudy.custom", "trudy_org", "write", "allow"},
	{"trudy.custom", "trudy_org", "read", "deny"},
}
Expect(err).ShouldNot(HaveOccurred())
Expect(result).Should(ConsistOf(expected))

will result in:

  Expected
      <[][]string | len:2, cap:2>: [
          ["trudy.custom", "trudy_org", "write", "allow"],
          ["trudy.custom", "trudy_org", "read", "deny"],
      ]
  to consist of
      <[]interface {} | len:1, cap:1>: [
          [
              ["member", "trudy_org", "read", "allow"],
              ["trudy.custom", "trudy_org", "write", "allow"],
              ["trudy.custom", "trudy_org", "read", "deny"],
          ],
      ]
  the missing elements were
      <[]interface {} | len:1, cap:1>: [
          ["member", "trudy_org", "read", "allow"],
      ]

[hsluoyz]

@00LT00 any update?