chore: bump version to 9.0.0 w/ changelog (#18417)

Author: jelbourn

CHANGELOG.md

@@ -1,3 +1,8 @@
+# 9.0.0 "tungsten-hombre" (2020-02-06)
+
+(same as 9.0.0-rc.10)
+
+
 # 9.0.0-rc.10 "brocade-arcade" (2020-02-06)
 
 ### material

package.json

@@ -41,7 +41,7 @@
     "tslint": "tslint -c tslint.json --project ./tsconfig.json",
     "stylelint": "stylelint \"src/**/*.+(css|scss)\" --config .stylelintrc.json --syntax scss"
   },
-  "version": "9.0.0-rc.10",
+  "version": "9.0.0",
   "dependencies": {
     "@angular/animations": "^9.0.0",
     "@angular/common": "^9.0.0",