0.10 release notes (#2352)

* 0.10 release notes

This PR proposes the addition of the 0.10.0 release notes to the Boundary Docs page

* update nav structure to include 0.10.0

* Update v0_10_0.mdx

Added link to HCPb Credential Injection Tutorial

website/data/docs-nav-data.json

@@ -466,6 +466,10 @@
         "title": "Overview",
         "path": "release-notes"
       },
+      {
+        "title": "v0.10.0",
+        "path": "release-notes/v0_10_0"
+      },
       {
         "title": "v0.9.0",
         "path": "release-notes/v0_9_0"