Move implemented specs in implemented folder

I also removed useless templates for a better
HTML rendering.

Change-Id: I1220319a1388f74bcdccff271ce25647227d74c5

specs/newton/approved/newton-template.rst

@@ -1 +0,0 @@
-../../newton-template.rst

specs/newton/implemented/newton-template.rst

@@ -1 +0,0 @@
-../../newton-template.rst

specs/newton/redirects

@@ -0,0 +1,11 @@
+approved/cluster-model-objects-wrapper.rst ../implemented/cluster-model-objects-wrapper.rst
+approved/configurable-weights-default-planner.rst ../implemented/configurable-weights-default-planner.rst
+approved/continuously-optimization.rst ../implemented/continuously-optimization.rst
+approved/efficacy-indicator.rst ../implemented/efficacy-indicator.rst
+approved/get-goal-from-strategy.rst ../implemented/get-goal-from-strategy.rst
+approved/optimization-threshold.rst ../implemented/optimization-threshold.rst
+approved/persistent-audit-parameters.rst ../implemented/persistent-audit-parameters.rst
+approved/plugins-parameters.rst ../implemented/plugins-parameters.rst
+approved/scoring-module.rst ../implemented/scoring-module.rst
+approved/sd-strategy.rst ../implemented/sd-strategy.rst
+approved/uniform-airflow-migration-strategy.rst ../implemented/uniform-airflow-migration-strategy.rst