Add logo-bounce.wav, mine-click.wav and toggle-seal-click.wav sounds.

Add volume control for sounds.

Note: Have to figure out how to best play the logo bounce sound effect.
      The logo probably needs its own class.

Author: baz606

resources/sounds/logo-bounce.wav

@@ -379,12 +379,14 @@ void Game::UnloadData()
   UnloadFont(mFont);
 }
 
-void Game::PlaySoundFromMap(const std::string& name)
+void Game::PlaySoundFromMap(const std::string& name, float volume)
 {
   auto iter = mSoundMap.find(name);
   if (iter != mSoundMap.end())
   {
-    PlaySound(mSoundMap[name]);
+    Sound sound = mSoundMap[name];
+    SetSoundVolume(sound, volume);
+    PlaySound(sound);
   }
   else
   {

resources/sounds/mine-click.wav

@@ -45,7 +45,7 @@ class Game
   int GetScreenHeight() const { return mScreenHeight; }
   std::unordered_map<std::string, Sound>& GetSoundMap() { return mSoundMap; }
 
-  void PlaySoundFromMap(const std::string& name);
+  void PlaySoundFromMap(const std::string& name, float volume = 1.0f);
 
 //  void AddFont(class Font* font);
 //  void RemoveFont(class Font* font);

resources/sounds/toggle-seal-click.wav

@@ -97,25 +97,31 @@ void Grid::ToggleSeal(Cell* cell)
   {
     cell->SetCellType(SEALED);
     mTotalSeals--;
+    GetGame()->PlaySoundFromMap("toggle-seal-click.wav", 0.5f);
+
     return;
   }
   else if (cell->GetCellType() == MINE && mTotalSeals > 0)
   {
     cell->SetCellType(MINE_SEALED);
     mTotalSeals--;
+    GetGame()->PlaySoundFromMap("toggle-seal-click.wav", 0.5f);
     CheckForWin();
+
     return;
   }
 
   if (cell->GetCellType() == SEALED)
   {
     cell->SetCellType(UNEXPOSE);
     mTotalSeals++;
+    GetGame()->PlaySoundFromMap("toggle-seal-click.wav", 0.5f);
   }
   else if (cell->GetCellType() == MINE_SEALED)
   {
     cell->SetCellType(MINE);
     mTotalSeals++;
+    GetGame()->PlaySoundFromMap("toggle-seal-click.wav", 0.5f);
   }
 }
 
@@ -212,10 +218,11 @@ void Grid::Expose(Cell *cell)
     {
       mine->SetCellType(MINE_EXPOSE);
     }
+    GetGame()->PlaySoundFromMap("mine-click.wav");
   }
   else if (cell->GetCellType() == UNEXPOSE)
   {
-    GetGame()->PlaySoundFromMap("cell-click.wav");
+    GetGame()->PlaySoundFromMap("cell-click.wav", 2.f);
     // Check if its a normal cell
     std::vector<Cell*> adjacentCells;
     int numOfMines = GetAdjacentCells(cell, adjacentCells);