Add ability to install all conditional dependencies

setup.py

@@ -1,5 +1,24 @@
 from setuptools import setup, find_packages
 
+# Define Dependencies for Extra Requires
+conditional_dependencies = {
+    "dev":[
+        "pylint"
+    ],
+    "docs": [
+        "mkdocs",
+        "mkdocs-material",
+        "mkautodoc"
+    ],
+}
+
+def get_all_dependencies():
+    """Returns a single array of all dependencies."""
+    dependencies = []
+    for condition in conditional_dependencies.keys():
+        dependencies += conditional_dependencies[condition]
+    return dependencies
+
 setuptools.setup(
     name="webqueue2_api",
     version="0.9.1",
@@ -18,13 +37,8 @@
         "python-ldap @ git+https://github.itap.purdue.edu/ECN/python-ldap/@python-ldap-3.3.1",
     ],
     extras_require={
-        "dev": [
-            "pylint"
-        ],
-        "docs": [
-            "mkdocs",
-            "mkdocs-material",
-            "mkautodoc"
-        ]
+        "dev": conditional_dependencies["dev"],
+        "docs": conditional_dependencies["docs"],
+        "all": get_all_dependencies()
     }
 )