add 'local' parameter to seport

`community.general.seport` has recently added the `local` parameter
which is now supported by the role.

- `local: true`:
  * `state: present` enforces change to be made even though the
    port mapping could already exists in built in policy
  * `state: absent` would remove only local modification and would not
    try to remove builtin mapping.

README.md

@@ -110,7 +110,7 @@ Individual modifications can be dropped by setting `state` to `absent`.
 
 ```yaml
 selinux_ports:
-  - { ports: '22100', proto: 'tcp', setype: 'ssh_port_t', state: 'present' }
+  - { ports: '22100', proto: 'tcp', setype: 'ssh_port_t', state: 'present', local: true }
 ```
 
 #### run restorecon on filesystem trees

tasks/main.yml

@@ -93,6 +93,7 @@
     proto: "{{ item.proto | default('tcp') }}"
     setype: "{{ item.setype }}"
     state: "{{ item.state | default('present') }}"
+    local: "{{ item.local | default(False) }}"
   with_items: "{{ selinux_ports }}"
 
 - name: Set linux user to SELinux user mapping

tests/tests_port.yml

@@ -31,6 +31,8 @@
         selinux_ports:
           - { ports: '22022', proto: 'tcp', setype: 'ssh_port_t',
               state: 'present' }
+          - { ports: '22023', proto: 'tcp', setype: 'ssh_port_t',
+              state: 'present', local: true }
 
     - name: include test variables
       import_tasks: set_selinux_variables.yml
@@ -51,6 +53,12 @@
         selinux_ports:
           - { ports: '22022', proto: 'tcp', setype: 'ssh_port_t',
               state: 'absent' }
+          - { ports: '22', proto: 'tcp', setype: 'ssh_port_t',
+              state: 'absent', local: true }
+          - { ports: '22023', proto: 'tcp', setype: 'ssh_port_t',
+              state: 'absent', local: true }
+          - { ports: '22023', proto: 'tcp', setype: 'ssh_port_t',
+              state: 'absent', local: true }
 
     - name: include test variables
       import_tasks: set_selinux_variables.yml