Add ability to modify installed program wrap bounds

The wrap source and target cannot change after installing the program
into the PIO at present, even though this is possible with the C/C++
HAL. This is useful when using the same program across multiple state
machines that have different wrap sources and targets.

rp2040-hal/src/pio.rs

@@ -292,7 +292,25 @@ pub struct InstalledProgram<P> {
 }
 
 impl<P: PIOExt> InstalledProgram<P> {
-    /// Get the warp target (entry point) of the instaled program.
+    /// Change the source and/or target for automatic program wrapping.
+    ///
+    /// This replaces the current wrap bounds with a new set. This can be useful if you are running
+    /// multiple state machines with the same program but using different wrap bounds.
+    ///
+    /// # Returns
+    ///
+    /// * [`Ok`] containing a new program with the provided wrap bounds
+    /// * [`Err`] containing the old program if the provided wrap was invalid (outside the bounds of
+    ///   the program length)
+    pub fn set_wrap(self, wrap: Wrap) -> Result<Self, Self> {
+        if (self.offset + wrap.source) < self.length && (self.offset + wrap.target) < self.length {
+            Ok(InstalledProgram { wrap, ..self })
+        } else {
+            Err(self)
+        }
+    }
+
+    /// Get the wrap target (entry point) of the installed program.
     pub fn wrap_target(&self) -> u8 {
         self.offset + self.wrap.target
     }