Added Image deletion

Added buttons for image functions
Moved Image functions to their own file
Added PFP row in users table
Moved Groups back to the root templates folder

gallery/templates/groups/group.html

@@ -1,12 +0,0 @@
-{% extends 'layout.html' %}
-
-{% block header %}
-<img src="{{ url_for('static', filename='images/leaves.jpg') }}" alt="leaves" onload="imgFade(this)" style="display: none;"/>
-{% endblock %}
-
-{% block content %}
-    <div class="app">
-        <h1>Image Group</h1>
-        <p>{{group_id}}</p>
-    </div>
-{% endblock %}