Review and add alto777_LFSR.

.gitmodules

@@ -187,3 +187,6 @@
 [submodule "repos/Erratic"]
 	path = repos/Erratic
 	url = https://github.com/bafonso/Erratic.git
+[submodule "repos/alto777_LFSR"]
+	path = repos/alto777_LFSR
+	url = https://github.com/alto777/LFSR.git

manifests/alto777_LFSR.json

@@ -1,6 +1,9 @@
 {
   "name": "alto777 LFSR",
   "author": "Robert A Moeser",
+  "authorEmail": "ram32768@gmail.com",
   "license": "BSD-3-Clause",
-  "sourceUrl": "https://github.com/alto777/LFSR"
+  "sourceUrl": "https://github.com/alto777/LFSR",
+  "manualUrl": "https://github.com/alto777/LFSR/README.md",
+  "repoVersion": "0.6.02"
 }

repos/alto777_LFSR

@@ -0,0 +1 @@
+Subproject commit db655f61b228aad45f06cbb1f6dacc0e5e97c1b7