Senselib FFI: Use devDesc object in SenseApiLib, also add per-device metadata to xcbXorg

We also had to write conversion constructors and so on to CSenseDeviceDesc.
The technical debt that's being piled up from this C FFI is excessive.
I think we'll end it here. API Libs will have to be written in C++
from now on. API Lib interfaces will be in C++.

We'll use cross compilers to ensure stability for out-of-tree lib
development.

hcore/include/senseApis/senseApiLib.h

@@ -32,7 +32,8 @@ public:
     SenseApiDesc() = default;
     SenseApiDesc(const CSenseApiDesc& cDesc)
     // The caller should sanity check before calling this constructor.
-    :   name(cDesc.name)
+    :   name(cDesc.name),
+        sal_mgmt_libOps(cDesc.sal_mgmt_libOps)
     {
         for (uint32_t i = 0; i < cDesc.numExportedImplexorApis; ++i)
         {
@@ -51,6 +52,7 @@ public:
     std::string name;
     // These are the implexors whose APIs this lib exports.
     std::vector<ExportedImplexorApiDesc> exportedImplexorApis;
+    Csal_mgmt_libOps* sal_mgmt_libOps;
 
     std::string stringify() const {
         std::string result = "Name: " + name + "\n";