Add LMS implementation

Also an LM-OTS implementation as one is required for LMS.

Signed-off-by: Raef Coles <raef.coles@arm.com>
diff --git a/library/CMakeLists.txt b/library/CMakeLists.txt
index 9513814..7c325f7 100644
--- a/library/CMakeLists.txt
+++ b/library/CMakeLists.txt
@@ -44,6 +44,8 @@
     hash_info.c
     hkdf.c
     hmac_drbg.c
+    lmots.c
+    lms.c
     md.c
     md5.c
     memory_buffer_alloc.c