Added function GetFileName()

Review comments

src/core.c

@@ -1174,7 +1174,7 @@ bool IsFileExtension(const char *fileName, const char *ext)
     return result;
 }
 
-// Get the extension for a filename
+// Get pointer to extension for a filename string
 const char *GetExtension(const char *fileName)
 {
     const char *dot = strrchr(fileName, '.');
@@ -1184,6 +1184,17 @@ const char *GetExtension(const char *fileName)
     return (dot + 1);
 }
 
+// Get pointer to filename for a path string
+const char *GetFileName(const char *filePath)
+{
+    const char *fileName = strrchr(filePath, '\\');
+    
+    if (!fileName || fileName == filePath) return filePath;
+
+    return fileName + 1;
+}
+
+
 // Get directory for a given fileName (with path)
 const char *GetDirectoryPath(const char *fileName)
 {

src/raylib.h

@@ -736,9 +736,10 @@ RLAPI int GetRandomValue(int min, int max);                       // Returns a r
 
 // Files management functions
 RLAPI bool IsFileExtension(const char *fileName, const char *ext);// Check file extension
-RLAPI const char *GetExtension(const char *fileName);             // Get file extension
+RLAPI const char *GetExtension(const char *fileName);             // Get pointer to extension for a filename string
-RLAPI const char *GetDirectoryPath(const char *fileName);         // Get directory for a given fileName (with path)
+RLAPI const char *GetFileName(const char *filePath);              // Get pointer to filename for a path string
-RLAPI const char *GetWorkingDirectory(void);                      // Get current working directory
+RLAPI const char *GetDirectoryPath(const char *fileName);         // Get full path for a given fileName (uses static string)
+RLAPI const char *GetWorkingDirectory(void);                      // Get current working directory (uses static string)
 RLAPI bool ChangeDirectory(const char *dir);                      // Change working directory, returns true if success
 RLAPI bool IsFileDropped(void);                                   // Check if a file has been dropped into window
 RLAPI char **GetDroppedFiles(int *count);                         // Get dropped files names