Added pcodetest source code to SleighDevTools module. Corrected

certification issues.

Ghidra/Extensions/SleighDevTools/pcodetest/c_src/GlobalVariables_BODY.c

@@ -0,0 +1,37 @@
+/* ###
+ * IP: GHIDRA
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#include "pcode_test.h"
+
+extern i4 GLOBAL = 0;
+
+void pcode_ModifyGlobal(i4 arg1)
+{
+	GLOBAL = arg1;
+}
+
+i4 pcode_AccessAndModifyGlobal(i4 arg1)
+{
+	i4 tmp;
+
+	tmp = GLOBAL;
+	GLOBAL = arg1;
+	return tmp;
+}
+
+i4 pcode_AccessGlobal()
+{
+	return GLOBAL;
+}