GEOS boot disk patcher: add the TR USB mouse driver to a copy of the user's boot disk

.gitattributes

@@ -4,3 +4,6 @@
 # Generated by tools/build-c64.mjs with LF endings; check them out as LF too so a
 # rebuild on Windows (core.autocrlf=true) doesn't flag unchanged headers as modified
 Source/Teensy/TRMenuFiles/ROMs/*.h text eol=lf
+
+# Generated by tools/geos/trmouse.py --c-header with LF endings, kept LF for the same reason
+Source/Teensy/GEOS/TRMouse128.h text eol=lf

Source/C64/MainMenuCRT/source/Menu_Regs.i

@@ -394,6 +394,7 @@
    rtBinC128 = 18
    rtFileREU = 19
    rtFileTRH = 20
+   rtGEOS = 21
 
 ;63 max: rRegItemTypePlusIOH uses bit 7 (assigned IOH) and bit 6 (/VMS claim),
 ;and TblItemType's mult by 4 limits it to 63 as well

Source/C64/MainMenuCRT/source/StringsMsgs.s

@@ -177,3 +177,4 @@ TblItemType: ;must match regItemTypes (rtNone, rtBin16k, etc) order!
    !tx 0, "128"  ; rtBinC128     = 18 
    !tx 0, "REU"  ; rtFileREU     = 19 
    !tx 0, "TRH"  ; rtFileTRH     = 20
+   !tx 0, "GEO"  ; rtGEOS        = 21

Source/Teensy/DriveDirLoad.ino

@@ -270,6 +270,12 @@ FLASHMEM void HandleExecution()
             return;
          }
 
+         if (MenuSelCpy.ItemType == rtGEOS)
+         {
+            LaunchGeos((const struct GeosLauncher*)MenuSelCpy.Code_Image);
+            return;
+         }
+
          SendMsgPrintfln("%s", MenuSelCpy.Name);
          if (MenuSelCpy.ItemType == rtFileCrt)
          {  //load the CRT into RAM