Update docs and fix bugs (#149)

Improved the docs for the 3 main Tactility projects. I also fixed some inaccuracies and bugs in certain APIs as I went through the code.

Tactility/Source/app/ElfApp.cpp

@@ -22,7 +22,7 @@ bool startElfApp(const std::string& filePath) {
     assert(elfFileData == nullptr);
 
     size_t size = 0;
-    elfFileData = file::readBinary(filePath.c_str(), size);
+    elfFileData = file::readBinary(filePath, size);
     if (elfFileData == nullptr) {
         return false;
     }