Add inner loop geometry to miter join for toy stroker
Add inner loop geometry to miter join for toy stroker

Now the miter join matches SkStroke, adding the extra inner loop
geometry always. Next will be the harder part, which is figuring out how
to get rid of it!

Also fixed a CW/CCW rotation inconsistency to match SkStroke

Change-Id: Ie3d164053fd5683f3b678bb80f8421dc6dc48cd7
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/304809
Reviewed-by: Tyler Denniston <293ae2d31b7e9da32c4fb58bdaaed1f4bef4c6e7@google.com>
Auto-Submit: Tyler Denniston <293ae2d31b7e9da32c4fb58bdaaed1f4bef4c6e7@google.com>
Commit-Queue: Tyler Denniston <293ae2d31b7e9da32c4fb58bdaaed1f4bef4c6e7@google.com>

google/skia,google/skia,aosp-mirror/platform_external_skia,aosp-mirror/platform_external_skia,aosp-mirror/platform_external_skia,google/skia,google/skia,aosp-mirror/platform_external_skia,google/skia,aosp-mirror/platform_external_skia,google/skia,google/skia,google/skia,aosp-mirror/platform_external_skia,google/skia,aosp-mirror/platform_external_skia,aosp-mirror/platform_external_skia,aosp-mirror/platform_external_skia,aosp-mirror/platform_external_skia,google/skia