Add codes for KnightOS

KnightOS acts as a generic hub and userspace applications can plug
themselves into it. We're reserving a code for the hub itself, as well
as for our MTP userspace service.

1209/C0DE/index.md

@@ -0,0 +1,8 @@
+---
+layout: pid
+title: KnightOS Generic Hub
+owner: knightos
+license: MIT
+site: http://www.knightos.org/
+source: http://github.com/KnightOS/kernel
+---

1209/C0DF/index.md

@@ -0,0 +1,8 @@
+---
+layout: pid
+title: KnightOS MTP Device
+owner: knightos
+license: MIT
+site: http://www.knightos.org/
+source: http://github.com/KnightOS/kernel
+---

org/knightos/index.md

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+---
+layout: org
+title: KnightOS
+---
+KnightOS is a free/open source operating system for calculators.