Add eos_lldp module (#34302)

* Add eos_lldp module

*  Implementation for eos_lldp module
*  eos_lldp integration test

* Fix minor issue

* Minor change

test/integration/targets/eos_lldp/tests/eapi/basic.yaml

@@ -0,0 +1,56 @@
+---
+- debug: msg="START eos_lldp eapi/basic.yaml on connection={{ ansible_connection }}"
+
+- name: Make sure LLDP is not running before tests
+  eos_config:
+    lines: no lldp run
+    authorize: yes
+    provider: "{{ eapi }}"
+
+- name: Enable LLDP service
+  eos_lldp:
+    state: present
+    authorize: yes
+    provider: "{{ eapi }}"
+  register: result
+
+- assert:
+    that:
+      - 'result.changed == true'
+      - '"lldp run" in result.commands'
+
+- name: Enable LLDP service again (idempotent)
+  eos_lldp:
+    state: present
+    authorize: yes
+    provider: "{{ eapi }}"
+  register: result
+
+- assert:
+    that:
+      - 'result.changed == false'
+
+- name: Disable LLDP service
+  eos_lldp:
+    state: absent
+    authorize: yes
+    provider: "{{ eapi }}"
+  register: result
+
+- assert:
+    that:
+      - 'result.changed == true'
+      - '"no lldp run" in result.commands'
+
+- name: Disable LLDP service (idempotent)
+  eos_lldp:
+    state: absent
+    authorize: yes
+    provider: "{{ eapi }}"
+  register: result
+
+- assert:
+    that:
+      - 'result.changed == false'
+
+- debug: msg="END eos_lldp eapi/basic.yaml on connection={{ ansible_connection }}"