modified code to work with spt_dataset_manager as package

Author: snowman2

.gitmodules

@@ -1,3 +0,0 @@
-[submodule "spt_dataset_manager"]
-	path = spt_ecmwf_autorapid_process/spt_dataset_manager
-	url = https://github.com/erdc-cm/spt_dataset_manager.git

README.md

@@ -99,8 +99,6 @@ See: https://github.com/erdc-cm/spt_dataset_manager
 $ cd /path/to/your/scripts/
 $ git clone https://github.com/erdc-cm/spt_ecmwf_autorapid_process.git
 $ cd spt_ecmwf_autorapid_process
-$ git submodule init
-$ git submodule update
 $ python setup.py install
 ```
 

spt_ecmwf_autorapid_process/rapid_process.py

@@ -46,8 +46,8 @@
                                               compute_seasonal_initial_rapid_flows_multicore_worker,
                                               update_inital_flows_usgs,)
 #package imports
-from .spt_dataset_manager.dataset_manager import (ECMWFRAPIDDatasetManager,
-                                                  RAPIDInputDatasetManager)
+from spt_dataset_manager.dataset_manager import (ECMWFRAPIDDatasetManager,
+                                                 RAPIDInputDatasetManager)
 #----------------------------------------------------------------------------------------
 # HELPER FUNCTIONS
 #----------------------------------------------------------------------------------------