Fixed graph features

- Common graph code made into a method.
- No longer needs the user to pass in the ga for graphing.
- Changed graph attribute from class to object.
- Added ga to the graph object as an attribute on initialization to avoid needing to pass it in every time you graph.
- Capitalized database/graph classes.

src/attributes.py

@@ -71,7 +71,7 @@ class Attributes:
                                                 fitness DOUBLE,
                                                 chromosome text
                                             ); """,
-            graph                       = graph.graph
+            Graph                       = graph.Graph
         ):
 
         # Initilization variables
@@ -122,7 +122,8 @@ class Attributes:
         self.sql_create_data_structure = deepcopy(sql_create_data_structure)
 
         # Graphing variables
-        self.graph = deepcopy(graph)
+        self.graph = Graph(self)
+
 
     # Getter and setters for all required varibles
     @property
@@ -131,6 +132,7 @@ class Attributes:
 
         return self._chromosome_length
 
+
     @chromosome_length.setter
     def chromosome_length(self, value_input):
         """Setter function with error checking for chromosome length"""
@@ -147,6 +149,7 @@ class Attributes:
 
         return self._population_size
 
+
     @population_size.setter
     def population_size(self, value_input):
         """Setter function with error checking for population size"""