[AAE-11496] Publish libraries to npm (#2880)

* [AAE-11496] Publish libraries to npm registry

* update

* update

* added md

* deprecate old version

docs/extending/publish-to-npm.md

@@ -0,0 +1,37 @@
+---
+Title: Publish to npm
+---
+
+# Create a new library
+
+New library can be created using standard `ng` command
+
+e.g. if we would like to create `aca-new-lib` we need to run the following:
+
+```
+ng generate @schematics/angular:library aca-new-lib
+```
+
+# Publish library
+
+## Build library
+In order to publish new library, we need to build it first. You need to add build of your library to `build-libs` command in `package.json`
+
+```
+"build-libs": "ng build aca-shared && ng build aca-new-lib",
+```
+
+## Update publish script
+If we would like to publish the new library we need to update `scripts/ci/npm/publish-libs.sh`
+
+The only thing that need to be done is to update `PROJECTS` variable by adding your library name i.e.
+
+```
+PROJECTS=(
+    'aca-shared',
+    'aca-new-lib'
+);
+```
+# Caveats
+- The versions of libraries are updated automatically by the script (should not be done manually)
+- In travis setting you can find `PUBLISH_PROJECTS` variable, which can be used for enabling dry mode when running the publish command