Add script for automating sync. and regeneration of ACVP kats for ml-kem keygen algo

Signed-off-by: Anjan Roy <hello@itzmeanjan.in>

Makefile

@@ -47,3 +47,7 @@ clean: ## Remove build directory
 .PHONY: format
 format: $(ML_KEM_SOURCES) $(TEST_SOURCES) $(TEST_HEADERS) $(BENCHMARK_SOURCES) $(BENCHMARK_HEADERS) ## Format source code
 	clang-format -i $^
+
+.PHONY: sync_acvp_kats
+sync_acvp_kats: ## Downloads NIST ACVP KAT vectors and updates local KATs
+	cd kats/scripts && ./sync_acvp_kats.sh && cd -

kats/scripts/sync_acvp_kats.sh

@@ -0,0 +1,19 @@
+#!/bin/bash
+
+ACVP_SERVER_REPO_PATH="ACVP-Server"
+if [ -d "$ACVP_SERVER_REPO_PATH" ]; then
+    echo "> $ACVP_SERVER_REPO_PATH repository exists, let's just fetch latest."
+
+    pushd $ACVP_SERVER_REPO_PATH
+    git checkout master
+    git fetch
+    git pull origin master
+    popd
+else
+    echo "> $ACVP_SERVER_REPO_PATH repository doesn't exist, let's clone it."
+    git clone https://github.com/usnistgov/ACVP-Server.git
+fi
+
+cat ./ACVP-Server/gen-val/json-files/ML-KEM-keyGen-FIPS203/internalProjection.json | python parse_ml_kem_keygen_acvp_kat.py
+
+echo "> Generated all NIST ACVP KATs."