Alot of name changes and file name changes

src/survivor_selection/README.md

@@ -0,0 +1 @@
+# Selection functions

src/survivor_selection/__init__.py

@@ -0,0 +1,2 @@
+# FROM (. means local) file_name IMPORT function_name
+from .methods import Survivor_methods

src/survivor_selection/methods.py

@@ -0,0 +1,8 @@
+class Survivor_methods:
+    """Survivor methods defintion here"""
+
+    def elitism():
+        pass
+
+    def remove_two_worst():
+        pass