tfjs-webgpu: Rename tfjs-webgpu to tfjs-backend-webgpu. (#1839)

INTERNAL

Author: annxingyuan

cloudbuild.yml

@@ -44,7 +44,7 @@ steps:
 - name: 'gcr.io/cloud-builders/gcloud'
   entrypoint: 'bash'
   id: 'tfjs-backend-webgpu'
-  args: ['./scripts/run-build.sh', 'tfjs-webgpu']
+  args: ['./scripts/run-build.sh', 'tfjs-backend-webgpu']
   waitFor: ['diff']
 
 # React Native.
@@ -73,4 +73,4 @@ timeout: 1800s
 logsBucket: 'gs://tfjs-build-logs'
 options:
   logStreamingOption: 'STREAM_ON'
-  substitution_option: 'ALLOW_LOOSE'
+  substitution_option: 'ALLOW_LOOSE'

tfjs-webgpu/.npmignore renamed to tfjs-backend-webgpu/.npmignore

@@ -7,7 +7,7 @@ steps:
 
 # Install webgpu dependencies.
 - name: 'node:10'
-  dir: 'tfjs-webgpu'
+  dir: 'tfjs-backend-webgpu'
   entrypoint: 'yarn'
   id: 'test-webgpu'
   args: ['test-ci']