DevSpec: Grammar now parses params as key[=[val]]

* Updated docs to reflect this.
* This was important in allowing us to write the xcbXorg connection
 code.

include/user/senseDeviceSpec.h

@@ -30,9 +30,9 @@ public:
     char sensorType;
     std::string implexor;
     std::string api;
-    std::vector<std::string> apiParams;
+    std::vector<std::pair<std::string,std::string>> apiParams;
     std::string provider;
-    std::vector<std::string> providerParams;
+    std::vector<std::pair<std::string,std::string>> providerParams;
     std::string deviceSelector;
 
     std::string stringify() const
@@ -42,12 +42,20 @@ public:
            << implexor << ", API: " << api << ", API Params: (";
         for (const auto& param : apiParams)
         {
-            os << param << " ";
+            os << param.first;
+            if (!param.second.empty()) {
+                os << "=" << param.second;
+            }
+            os << " ";
         }
         os << "), Provider: " << provider << ", Provider Params: (";
         for (const auto& param : providerParams)
         {
-            os << param << " ";
+            os << param.first;
+            if (!param.second.empty()) {
+                os << "=" << param.second;
+            }
+            os << " ";
         }
         os << "), Device Selector: " << deviceSelector << std::endl;