begin work on actually getting installing working

neb/src/install.py

@@ -0,0 +1,25 @@
+from .console import print_error_message
+from .util import ensure_libs_env, comet_dir, get_package_index
+
+import os
+
+
+def install(args):
+    ensure_libs_env()
+    
+    # install each package in given list
+    for name in args.names:
+        version = "latest"
+        
+        # get version number
+        name: str = name
+        if '@' in name:
+            version: str = (name.rsplit('@', 1)[-1])
+            name = name.rpartition('@')[0]
+            
+            if version == "":
+                print_error_message("did not provide version")
+                return
+            
+        index = get_package_index()
+        print(index)