Create a query suites for "single-translation-unit" C++ rules

These query suites identify rules which are usable on a database created
for a single translation unit without introducing new false positives
vs. a full build for a project.

Author: lcartey

cpp/autosar/src/codeql-suites/autosar-single-translation-unit.qls

@@ -0,0 +1,12 @@
+- description: AUTOSAR C++14 Guidelines 20-11 (Single Translation Unit)
+- qlpack: autosar-cpp-coding-standards
+- include:
+    kind:
+    - problem
+    - path-problem
+    tags contain:
+    - scope/single-translation-unit
+- exclude:
+    tags contain:
+    - external/autosar/audit
+    - external/autosar/default-disabled

cpp/cert/src/codeql-suites/cert-single-translation-unit.qls

@@ -0,0 +1,11 @@
+- description: CERT C++ 2016 (Single Translation Unit)
+- qlpack: cert-cpp-coding-standards
+- include:
+    kind:
+    - problem
+    - path-problem
+    tags contain:
+    - scope/single-translation-unit
+- exclude:
+    tags contain:
+    - external/cert/default-disabled