AdminPanel updates - changelog

-Admin menu updates
-Moved getchangelogtype/where to functions file and added to twig
-Added changelog editor to admin panel and updated changelog page
-Renamed the changelog md reader to clmd and edited the version file.

system/templates/admin.changelog.html.twig

@@ -0,0 +1,55 @@
+<div class="card card-info card-outline">
+	<div class="card-header">
+		<h5 class="m-0">News:
+			<a href="{{ constant('ADMIN_URL') }}?p=changelog&action=new" class="float-right"><span
+					class="btn btn-sm btn-success">New</span></a>
+		</h5>
+	</div>
+
+	<div class="card-body">
+		<table class="tb_datatable table table-striped table-bordered">
+			<thead>
+			<tr>
+				<th width="5%">ID</th>
+				<th>Date</th>
+				<th>Description</th>
+				<th>Type</th>
+				<th>Where</th>
+				<th></th>
+			</tr>
+			</thead>
+			<tbody>
+			{% if changelogs|length > 0 %}
+				{% set i = 0 %}
+				{% for log in changelogs %}
+					<tr>
+						<td>{{ log.id }}</td>
+						<td>{{ log.date|date("j.m.Y") }}</td>
+						<td>{{ truncate(log.body|raw,20) }}</td>
+						<td><img src="{{ constant('BASE_URL') }}images/changelog/{{ log.type }}.png" title="{{ log.type|capitalize }}"/> {{ log.type|capitalize }}</td>
+						<td><img src="{{ constant('BASE_URL') }}images/changelog/{{ log.where }}.png" title="{{ log.where|capitalize }}"/> {{ log.where|capitalize }}</td>
+						<td>
+							<div class="btn-group">
+								<a href="{{ constant('ADMIN_URL') }}?p=changelog&action=edit&id={{ log.id }}" class="btn btn-success btn-sm" title="Edit">
+									<i class="fas fa-pencil-alt"></i>
+								</a>
+								<a href="{{ constant('ADMIN_URL') }}?p=changelog&action=delete&id={{ log.id }}" class="btn btn-danger btn-sm" onclick="return confirm('Are you sure?');" title="Delete">
+									<i class="fas fa-trash"></i>
+								</a>
+								<a href="{{ constant('ADMIN_URL') }}?p=changelog&action=hide&id={{ log.id }}" class="btn btn-{{ (log.hidden != 1) ? 'info' : 'default' }} btn-sm" title="{% if log.hidden != 1 %}Hide{% else %}Show{% endif %}">
+									<i class="fas fa-eye{{ (log.hidden != 1) ? '' : '-slash' }}"></i>
+								</a>
+							</div>
+						</td>
+					</tr>
+					{% set i = i + 1 %}
+				{% endfor %}
+			{% else %}
+				<tr>
+					<td colspan="6">There are no changelogs for the moment.</td>
+				</tr>
+			{% endif %}
+			</tbody>
+		</table>
+	</div>
+</div>