Add Certbot and HAProxy management modules, container environment parsing, and plugin management framework

- Introduced `certbot.py` for ACME certificate management, including certificate issuance, renewal, and environment validation.
- Added `haproxy.py` for HAProxy process management, configuration validation, and dynamic command handling.
- Implemented `container_env.py` for reading and parsing environment variables with YAML overrides.
- Created `consts.py` for centralized management of static and dynamic paths.
- Added `manager.py` to enable plugin discovery, initialization, configuration, and execution.
- Refactored logging and configuration handling across modules for consistency.

Enhances modularity and scalability by introducing feature-dedicated modules and structured configuration handling.

src/processor/docker.py

@@ -0,0 +1,35 @@
+import socket
+
+import docker
+
+from .interface import ProcessorInterface
+
+
+class Docker(ProcessorInterface):
+    def __init__(self, filename=None):
+        self.parsed_object = None
+        self.client = docker.from_env()
+        super().__init__()
+
+    def inspect_network(self):
+        try:
+            ha_proxy_network_name = next(
+                iter(self.client.containers.get(socket.gethostname()).attrs["NetworkSettings"]["Networks"]))
+        except Exception:
+            # HAProxy is not running in a container, get first container network
+            if len(self.client.containers.list()) == 0:
+                return
+            ha_proxy_network_name = next(iter(
+                self.client.containers.get(self.client.containers.list()[0].name).attrs["NetworkSettings"]["Networks"]))
+
+        ha_proxy_network = self.client.networks.get(ha_proxy_network_name)
+
+        self.parsed_object = {}
+        for container in self.client.containers.list():
+            # Issue 32 - Docker container cannot connect to containers in different network.
+            if ha_proxy_network_name not in container.attrs["NetworkSettings"]["Networks"].keys():
+                ha_proxy_network.connect(container.name)
+                container = self.client.containers.get(container.name)  # refresh object
+
+            ip_address = container.attrs["NetworkSettings"]["Networks"][ha_proxy_network_name]["IPAddress"]
+            self.parsed_object[ip_address] = container.labels