tools: function names for the Ghidra project, Hold-Key test helper

- tools/names.txt lists identified sacred.exe functions ("0xADDR
  Class::Method"); rename.ps1 / Rename.java apply them to the persistent
  Ghidra project, so decompiles read with real names.
- decompile.ps1: parameters other than the addresses are named-only (the
  first address was taken as -Out).
- game-input.ps1: Hold-Key for polled keys such as movement.

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>

tools/game-input.ps1

@@ -4,6 +4,7 @@
 #   Start-Sacred                      # launcher, returns the sacred.exe process
 #   Click-At 1720 779                 # screen pixels (left click)
 #   Press-Key 0x1B                    # virtual key (ESC)
+#   Hold-Key 0x27 -Ms 1500            # hold a key (right arrow)
 #   Save-Screen screenshots\x.png     # primary monitor area of the game
 #   Stop-Sacred $game                 # only the given process
 #
@@ -85,3 +86,11 @@ function Move-To([int]$X, [int]$Y, [int]$AfterMs = 800) {
     }
     Start-Sleep -Milliseconds $AfterMs
 }
+
+# Holds a key down for a while (polled keys such as movement need this).
+function Hold-Key([byte]$VirtualKey, [int]$Ms = 1500, [int]$AfterMs = 500) {
+    [SacredRe.Input]::keybd_event($VirtualKey, 0, 0, [UIntPtr]::Zero)
+    Start-Sleep -Milliseconds $Ms
+    [SacredRe.Input]::keybd_event($VirtualKey, 0, 2, [UIntPtr]::Zero)
+    Start-Sleep -Milliseconds $AfterMs
+}