Feature - Add ComponentInternalInstance interface to exports

- Added ComponentInternalInstance to exports
- Version bump to rc7
- Updated rollup-plugin-typescript2 to v0.30.0
- Added yarn to dev dependencies
- Updated tslib to 2.2.0

updated tslib to 2.2.0

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@vue/composition-api",
-  "version": "1.0.0-rc.6",
+  "version": "1.0.0-rc.7",
   "description": "Provide logic composition capabilities for Vue.",
   "keywords": [
     "vue",
@@ -60,18 +60,19 @@
     "rollup": "^2.39.0",
     "rollup-plugin-dts": "^2.0.1",
     "rollup-plugin-terser": "^7.0.2",
-    "rollup-plugin-typescript2": "^0.29.0",
+    "rollup-plugin-typescript2": "^0.30.0",
     "ts-jest": "^26.5.1",
     "typescript": "^4.1.5",
     "vue": "^2.6.12",
     "vue-router": "^3.5.1",
-    "vue-server-renderer": "^2.6.12"
+    "vue-server-renderer": "^2.6.12",
+    "yarn": "^1.22.10"
   },
   "peerDependencies": {
     "vue": ">= 2.5 < 3"
   },
   "dependencies": {
-    "tslib": "^2.1.0"
+    "tslib": "^2.2.0"
   },
   "husky": {
     "hooks": {

src/index.ts

@@ -6,7 +6,7 @@ export const version = __VERSION__
 
 export * from './apis'
 export * from './component'
-export { getCurrentInstance } from './runtimeContext'
+export { getCurrentInstance, ComponentInternalInstance } from './runtimeContext'
 
 export default Plugin