Update reservoir set methods

main.py

@@ -319,32 +319,32 @@ async def fastapi_get_reservoir_y(network: str, reservoir: str) -> dict[str, flo
 async def fastapi_set_reservoir_head(network: str, reservoir: str, head: float) -> ChangeSet:
     ps = { 'id' : reservoir, 
            'head' : head }
-    return set_reservoir(network, reservoir, ps)
+    return set_reservoir(network, reservoir, ChangeSet(ps))
 
 @app.post("/setreservoirpattern/")
 async def fastapi_set_reservoir_pattern(network: str, reservoir: str, pattern: str) -> ChangeSet:
     ps = { 'id' : reservoir, 
            'pattern' : pattern }
-    return set_reservoir(network, reservoir, ps)
+    return set_reservoir(network, reservoir, ChangeSet(ps))
 
 @app.post("/setreservoirx/")
 async def fastapi_set_reservoir_x(network: str, reservoir: str, x: float) -> ChangeSet:
     ps = { 'id' : reservoir, 
            'x' : x }
-    return set_reservoir(network, reservoir, ps)
+    return set_reservoir(network, reservoir, ChangeSet(ps))
 
 @app.post("/setreservoirx/")
 async def fastapi_set_reservoir_y(network: str, reservoir: str, y: float) -> ChangeSet:
     ps = { 'id' : reservoir, 
            'y' : y }
-    return set_reservoir(network, reservoir, ps)
+    return set_reservoir(network, reservoir, ChangeSet(ps))
 
 @app.post("/setreservoircoord/")
 async def fastapi_set_reservoir_y(network: str, reservoir: str, x: float, y: float) -> ChangeSet:
     ps = { 'id' : reservoir, 
            'x' : x,
            'y' : y }
-    return set_reservoir(network, reservoir, ps)
+    return set_reservoir(network, reservoir, ChangeSet(ps))
 
 @app.get("/getreservoirproperties/")
 async def fastapi_get_reservoir_properties(network: str, reservoir: str) -> dict[str, Any]:
@@ -526,8 +526,6 @@ async def fast_get_pipe_schema(network: str) -> dict[str, dict[str, Any]]:
 @app.post("/addpipe/")
 async def fastapi_add_pipe(network: str, pipe: str, node1: str, node2: str, length: float = 0, 
                            diameter: float = 0, roughness: float = 0, minor_loss: float = 0, status: str = PIPE_STATUS_OPEN) -> ChangeSet:
-    print('add pipe add pipe')
-
     ps = { 'id' : pipe,
            'node1' : node1,
            'node2' : node2,