Add support for flash files (#19)

.gitmodules

@@ -1,3 +1,3 @@
-[submodule "tivars/tokenizer/tokens"]
-	path = tivars/tokenizer/tokens
+[submodule "tivars/tokens"]
+	path = tivars/tokens
 	url = https://github.com/TI-Toolkit/tokens

tests/tivars.py

@@ -5,7 +5,7 @@
 
 from tivars.models import *
 from tivars.types import *
-from tivars import TIHeader, TIVar
+from tivars import TIHeader, TIVar, TIFlashHeader
 
 
 class ModelTests(unittest.TestCase):
@@ -568,3 +568,20 @@ def test_group(self):
 
         self.assertEqual(TIGroup.group(ungrouped).ungroup(), ungrouped)
         self.assertEqual(TIGroup(ungrouped).ungroup(), ungrouped)
+
+
+class FlashTests(unittest.TestCase):
+    def test_app(self):
+        test_app = TIFlashHeader()
+
+        with open("tests/data/var/smartpad.8xk", 'rb') as file:
+            test_app.load_from_file(file)
+            file.seek(0)
+
+            self.assertEqual(test_app.bytes(), file.read())
+
+        self.assertEqual(type(test_app), TIApp)
+
+    def test_os(self):
+        test_os = TIFlashHeader.open("tests/data/var/TI-84_Plus_CE-Python-OS-5.8.0.0022.8eu")
+        self.assertEqual(type(test_os), TIOS)

tivars/__init__.py

@@ -3,10 +3,11 @@
 """
 
 
+from .flash import *
 from .tokenizer import *
 from .types import *
 from .models import *
 from .var import *
 
 
-__all__ = list(set(tokenizer.__all__) | set(types.__all__) | set(models.__all__) | set(var.__all__))
+__all__ = list({*flash.__all__, *tokenizer.__all__, *types.__all__, *models.__all__, *var.__all__})