Dikshit/chimera load bank power supply upgrade (#1336)

### Changelist 
<!-- Give a list of the changes covered in this PR. This will help both
you and the reviewer keep this PR within scope. -->
Just fixed some sample code to reflect two channels on the Power supply
instead of one
### Testing Done
<!-- Outline the testing that was done to demonstrate the changes are
solid. This could be unit tests, integration tests, testing on the car,
etc. Include relevant code snippets, screenshots, etc as needed. -->
Tested on Power Supply
### Resolved Tickets
<!-- Link any tickets that this PR resolves. -->

validationtools/validationtools/__init__.py

@@ -1,4 +1,4 @@
 from .chimera import *
 from .scope import *
 from .loadBank import *
-from .powerSupply import *
+from .powerSupply import *

validationtools/validationtools/powerSupply/_powerSupply.py

@@ -103,3 +103,18 @@ def get_id(self) -> str:
         returns: string, device identification
         """
         return self.ps.query('*IDN?')
+
+# Example usage
+if __name__ == "__main__":
+    power_supply = PowerSupply()
+    print(power_supply.get_id())
+    # power_supply.set_voltage(5.0)  # Set voltage to 5V
+    power_supply.set_current(1.51, 2)
+    power_supply.enable_output(2)
+
+    time.sleep(5)
+
+    current = power_supply.measure_current(2)
+    voltage = power_supply.measure_voltage(2)
+    print(f"Voltage: {voltage} V, Current: {current} A")
+    power_supply.disable_output()