ipahost: Extension to be able handle several hosts and all settings

The ipahost management module was not able to add several hosts at once.
Addtionally there have been settings missing.

ansible_freeipa_module has been extended to provide two additional functions
that are needed to simplify the extension of the ipahost module:

    gen_add_del_lists(user_list, res_list)
    encode_certificate(cert)

gen_add_del_lists will generate the lists for the addition and removal of
members using the provided user and ipa settings.

encode_certificate will encode a certificate using base64 with also taking
FreeIPA and Python versions into account.

The missing settings in ipahost have been:

    certificate
    managedby_host
    principal
    create_keytab_[user,group,host,hostgroup]
    retrieve_keytab_[user,group,host,hostgroup]
    sshpubkey
    userclass
    auth_ind
    requires_pre_auth
    ok_as_delegate
    ok_to_auth_as_delegate

The README-host.md file has been updated to provide information about the
new settings and also the members. Also examples for the new things have
been added.

New example playbooks have been added:

    playbooks/host/add-host.yml
    playbooks/host/host-member-allow_create_keytab-absent.yml
    playbooks/host/host-member-allow_create_keytab-present.yml
    playbooks/host/host-member-allow_retrieve_keytab-absent.yml
    playbooks/host/host-member-allow_retrieve_keytab-present.yml
    playbooks/host/host-member-certificate-absent.yml
    playbooks/host/host-member-certificate-present.yml
    playbooks/host/host-member-managedby_host-absent.yml
    playbooks/host/host-member-managedby_host-present.yml
    playbooks/host/host-member-principal-absent.yml
    playbooks/host/host-member-principal-present.yml
    playbooks/host/host-present-with-allow_create_keytab.yml
    playbooks/host/host-present-with-allow_retrieve_keytab.yml
    playbooks/host/host-present-with-certificate.yml
    playbooks/host/host-present-with-managedby_host.yml
    playbooks/host/host-present-with-principal.yml
    playbooks/host/host-present-with-randompassword.yml
    playbooks/host/host-present.yml
    playbooks/host/hosts-member-certificate-absent.yml
    playbooks/host/hosts-member-certificate-present.yml
    playbooks/host/hosts-member-managedby_host-absent.yml
    playbooks/host/hosts-member-managedby_host-present.yml
    playbooks/host/hosts-member-principal-absent.yml
    playbooks/host/hosts-member-principal-present.yml
    playbooks/host/hosts-present-with-certificate.yml
    playbooks/host/hosts-present-with-managedby_host.yml
    playbooks/host/hosts-present-with-randompasswords.yml

New tests have been added for the module:

    tests/host/certificate/cert1.der
    tests/host/certificate/cert1.pem
    tests/host/certificate/cert2.der
    tests/host/certificate/cert2.pem
    tests/host/certificate/cert3.der
    tests/host/certificate/cert3.pem
    tests/host/certificate/private1.key
    tests/host/certificate/private2.key
    tests/host/certificate/private3.key
    tests/host/certificate/test_host_certificate.yml
    tests/host/certificate/test_hosts_certificate.yml
    tests/host/test_host.yml
    tests/host/test_host_allow_create_keytab.yml
    tests/host/test_host_allow_retrieve_keytab.yml
    tests/host/test_host_managedby_host.yml
    tests/host/test_host_principal.yml
    tests/host/test_host_random.yml
    tests/host/test_hosts.yml
    tests/host/test_hosts_managedby_host.yml
    tests/host/test_hosts_principal.yml

playbooks/host/hosts-present-with-certificate.yml

@@ -0,0 +1,17 @@
+---
+- name: Hosts present with certificate
+  hosts: ipaserver
+  become: true
+
+  tasks:
+  - name: Hosts host01.example.com and host01.exmaple.com present with certificate
+    ipahost:
+      ipaadmin_password: MyPassword123
+      hosts:
+      - name: host01.example.com
+        certificate:
+        - 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
+      - name: host02.example.com
+        certificate:
+        - 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
+      force: yes