revert solution-style typescript configs (#2184)

* revert solution-style configs

* upgrade libs

projects/aca-testing-shared/package.json

@@ -2,6 +2,9 @@
   "name": "aca-testing-shared",
   "version": "2.4.0",
   "main": "src/index.ts",
+  "dependencies": {
+    "tslib": "^2.0.0"
+  },
   "peerDependencies": {
     "@angular/common": "^7.2.0",
     "@angular/core": "^7.2.0"

projects/aca-testing-shared/tsconfig.lib.json

@@ -1,5 +1,5 @@
 {
-  "extends": "../../tsconfig.base.json",
+  "extends": "../../tsconfig.json",
   "compilerOptions": {
     "outDir": "../../out-tsc/aca-testing",
     "target": "es2015",