Add post and species forms

Squashed commit of the following:
Author: Hugo PRADIER <Hugo.PRADIER2@etu.uca.fr>
Author: bastien ollier <bastien.ollier@etu.uca.fr>
Author: clfreville2 <clement.freville2@etu.uca.fr>
Reviewed on #7

templates/species/table.html.twig

@@ -0,0 +1,39 @@
+{% extends 'base.html.twig' %}
+
+{% block title %}Species index{% endblock %}
+
+{% block body %}
+    <h1>Species index</h1>
+
+    <table class="table">
+        <thead>
+        <tr>
+            <th>Id</th>
+            <th>Scientific_name</th>
+            <th>Vernacular_name</th>
+            <th>Region</th>
+            <th>actions</th>
+        </tr>
+        </thead>
+        <tbody>
+        {% for species in species %}
+            <tr>
+                <td>{{ species.id }}</td>
+                <td>{{ species.scientificName }}</td>
+                <td>{{ species.vernacularName }}</td>
+                <td>{{ species.region }}</td>
+                <td>
+                    <a href="{{ path('app_species_show', {'id': species.id}) }}">show</a>
+                    <a href="{{ path('app_species_edit', {'id': species.id}) }}">edit</a>
+                </td>
+            </tr>
+        {% else %}
+            <tr>
+                <td colspan="5">no records found</td>
+            </tr>
+        {% endfor %}
+        </tbody>
+    </table>
+
+    <a href="{{ path('app_species_new') }}">Create new</a>
+{% endblock %}