Initial commit with a mostly working engine.

Basic commands are being parsed. I think the only weird part is the
'use' command because it needs to possibly target two things. A tiny
test example is provided in __main__, this will probably be broken out
later.

Signed-off-by: Alek Ratzloff <alekratz@gmail.com>

agame/util.py

@@ -0,0 +1,11 @@
+from typing import Iterable, Optional, TYPE_CHECKING
+
+if TYPE_CHECKING:
+    from agame.item import ItemInst
+
+
+def search_item_name(seq: Iterable["ItemInst"], item_name: str) -> Optional["ItemInst"]:
+    for item in seq:
+        if item.name == item_name or item_name in item.synonyms:
+            return item
+    return None