Keep pre-commit inline with hacking and fix whitespace

The flake8 hook for pre-commit installs its own flake8 which is
not what hacking is pinned to. This results in a bunch of errors.
By doing a local hook we can cause these to be the same.

There are flake8 exclusions in tox.ini that need to be used
in pre-commit. Also we should exclude svg files from the whitespace
modifications, because who cares.

Once those are fixed, running pre-commit -a fixes some whitespace
issues. While the normal use isn't to run -a - if someone does make
a patch that touches any of these they'll get erroneous unrelated
errors compared to their lower work - so fix all of the existing
issues, which are mostly space-at-end-of-line issues it seems.

Change-Id: I78e753492e99c03b30a0a691db3bd75ee3d289c9

api-ref/source/images.inc

@@ -103,7 +103,7 @@ Response
    - name: image_name
    - minRam: minRam_body
    - minDisk: minDisk_body
-   - metadata: metadata_object 
+   - metadata: metadata_object
    - created: created
    - updated: updated
    - status: image_status
@@ -147,7 +147,7 @@ Response
    - name: image_name
    - minRam: minRam_body
    - minDisk: minDisk_body
-   - metadata: metadata_object 
+   - metadata: metadata_object
    - created: created
    - updated: updated
    - status: image_status
@@ -208,7 +208,7 @@ Response
 
 .. rest_parameters:: parameters.yaml
 
-   - metadata: metadata_object 
+   - metadata: metadata_object
 
 **Example List Image Metadata Details: JSON response**
 
@@ -233,7 +233,7 @@ Request
 .. rest_parameters:: parameters.yaml
 
   - image_id: image_id
-  - metadata: metadata_object 
+  - metadata: metadata_object
 
 **Example Create Image Metadata: JSON request**
 
@@ -245,7 +245,7 @@ Response
 
 .. rest_parameters:: parameters.yaml
 
-   - metadata: metadata_object 
+   - metadata: metadata_object
 
 **Example Create Image Metadata: JSON response**
 
@@ -270,7 +270,7 @@ Request
 .. rest_parameters:: parameters.yaml
 
   - image_id: image_id
-  - metadata: metadata_object 
+  - metadata: metadata_object
 
 **Example Update Image Metadata: JSON request**
 
@@ -282,7 +282,7 @@ Response
 
 .. rest_parameters:: parameters.yaml
 
-   - metadata: metadata_object 
+   - metadata: metadata_object
 
 **Example Update Image Metadata: JSON response**
 

api-ref/source/os-floating-ips.inc

@@ -86,7 +86,7 @@ can change these permissions through the ``policy.json`` file.
 
 Normal response codes: 200
 
-Error response codes: badRequest(400), unauthorized(401), forbidden(403), 
+Error response codes: badRequest(400), unauthorized(401), forbidden(403),
 itemNotFound(404)
 
 Request
@@ -131,7 +131,7 @@ can change these permissions through the ``policy.json`` file.
 
 Normal response codes: 200
 
-Error response codes: badRequest(400), unauthorized(401), forbidden(403), 
+Error response codes: badRequest(400), unauthorized(401), forbidden(403),
 itemNotFound(404)
 
 Request

api-ref/source/os-volumes.inc

@@ -50,7 +50,7 @@ Response
   - displayDescription: display_description
   - displayName: display_name
   - id: volume_id_resp
-  - metadata: metadata_object 
+  - metadata: metadata_object
   - size: size
   - snapshotId: snapshot_id
   - status: volume_status
@@ -110,7 +110,7 @@ Response
   - displayName: display_name
   - displayDescription: display_description
   - id: volume_id_resp
-  - metadata: metadata_object 
+  - metadata: metadata_object
   - size: size
   - snapshotId: snapshot_id
   - status: volume_status
@@ -158,7 +158,7 @@ Response
   - displayName: display_name
   - displayDescription: display_description
   - id: volume_id_resp
-  - metadata: metadata_object 
+  - metadata: metadata_object
   - size: size
   - snapshotId: snapshot_id
   - status: volume_status
@@ -205,7 +205,7 @@ Response
   - displayName: display_name
   - displayDescription: display_description
   - id: volume_id_resp
-  - metadata: metadata_object 
+  - metadata: metadata_object
   - size: size
   - snapshotId: snapshot_id
   - status: volume_status