build: clearing e2e for better caching

package.json

@@ -29,6 +29,14 @@
     "s:a9": "npm run s:a9f && npm run s:a9t",
     "s:a9f": "P=e2e/angular9-ivy-false/node_modules/ng-mocks && rm -Rf $P && mkdir -p $P && cp -R dist $P && cp package.json $P",
     "s:a9t": "P=e2e/angular9-ivy-true/node_modules/ng-mocks && rm -Rf $P && mkdir -p $P && cp -R dist $P && cp package.json $P",
+    "clear:a": "npm run clear:a5 && npm run clear:a6 && npm run clear:a7 && npm run clear:a8 && npm run clear:a9",
+    "clear:a5": "rm -Rf e2e/angular5/node_modules/ng-mocks",
+    "clear:a6": "rm -Rf e2e/angular6/node_modules/ng-mocks",
+    "clear:a7": "rm -Rf e2e/angular7/node_modules/ng-mocks",
+    "clear:a8": "rm -Rf e2e/angular8/node_modules/ng-mocks",
+    "clear:a9": "npm run clear:a9f && npm run clear:a9t",
+    "clear:a9f": "rm -Rf e2e/angular9-ivy-false/node_modules/ng-mocks",
+    "clear:a9t": "rm -Rf e2e/angular9-ivy-true/node_modules/ng-mocks",
     "s:test:a": "npm run s:test:a5 && npm run s:test:a6 && npm run s:test:a7 && npm run s:test:a8 && npm run s:test:a9",
     "s:test:a5": "P=e2e/angular5/src/test && rm -Rf $P && mkdir -p $P && cp -R tests $P && cp -R examples $P",
     "s:test:a6": "P=e2e/angular6/src/test && rm -Rf $P && mkdir -p $P && cp -R tests $P && cp -R examples $P",
@@ -37,7 +45,7 @@
     "s:test:a9": "npm run s:test:a9f && npm run s:test:a9t",
     "s:test:a9f": "P=e2e/angular9-ivy-false/src/test && rm -Rf $P && mkdir -p $P && cp -R tests $P && cp -R examples $P",
     "s:test:a9t": "P=e2e/angular9-ivy-true/src/test && rm -Rf $P && mkdir -p $P && cp -R tests $P && cp -R examples $P",
-    "e2e": "npm run build && npm run i:a && npm run s:a && npm run s:test:a && npm run test:a",
+    "e2e": "npm run build && npm run i:a && npm run s:a && npm run s:test:a && npm run test:a && npm run clear:a",
     "clean": "rm -rf dist coverage",
     "commit": "npx git-cz",
     "lint": "tslint --project tsconfig.json",