Add extension https://github.com/robo-technical-group/pxt-info-blocks…

…-extra and https://github.com/riknoll/arcade-fake-button-press

Fixes #177 and #174

content/extensions/074-riknoll---arcade-fake-button-press.md

@@ -0,0 +1,9 @@
+---
+repo: "https://github.com/riknoll/arcade-fake-button-press"
+links:
+  - title: Forum post
+    url: >-
+      https://forum.makecode.com/t/is-there-an-extension-that-presses-a-or-any-other-button-for-you-as-part-of-the-code/31068/4?u=unsignedarduino
+---
+
+With this extension, you can easily trigger your own A, B, up, etc. button handlers! No need to define a one-off function! Make sure you call the release function before pressing again. This extension adds a `FakeButtons` category.

content/extensions/075-robo-technical-group---pxt-info-blocks-extra.md

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+---
+repo: "https://github.com/robo-technical-group/pxt-info-blocks-extra"
+links:
+  - title: Forum post
+    url: >-
+      https://forum.makecode.com/t/petition-for-coloring-info-blocks/30460/4?u=unsignedarduino
+  - title: Demo
+    url: "https://robo-technical-group.github.io/pxt-info-blocks-extra/"
+---
+
+Customization is a key part of any great game - with this extension, you can customize the look and feel of the life and score blocks to match your game's aesthetic better! There is even a [tutorial](https://arcade.makecode.com) available! This adds a `Customize` subsection to the `Info` category in the toolbox.