Squashed commit of the following:

commit b7dcadf359
Author: Julian Freeman <freemanjulian372@gmail.com>
Date:   Fri Feb 2 17:55:23 2024 -0400

    v1.0.0

commit d84b107177
Author: Julian Freeman <freemanjulian372@gmail.com>
Date:   Fri Feb 2 09:35:56 2024 -0400

    dev 02020935

commit a69ba157a5
Author: Julian Freeman <freemanjulian372@gmail.com>
Date:   Thu Feb 1 21:49:26 2024 -0400

    dev 02012149

commit 38d98dee94
Author: Julian Freeman <freemanjulian372@gmail.com>
Date:   Thu Feb 1 18:12:45 2024 -0400

    dev 02011812

commit 3e17def627
Author: Julian Freeman <freemanjulian372@gmail.com>
Date:   Thu Feb 1 11:27:24 2024 -0400

    dev 02011127

commit 06327f3bfc
Author: Julian Freeman <freemanjulian372@gmail.com>
Date:   Thu Feb 1 00:44:45 2024 -0400

    dev 24.01.31

global_vars.py

@@ -0,0 +1,42 @@
+# coding: utf8
+import requests
+from PySide6 import QtWidgets
+
+SoftwareStatusRole = 0x0101
+ExtensionStatusRole = 0x0102
+ExtensionIdRole = 0x0103
+
+
+def accept_warning(widget: QtWidgets.QWidget, condition: bool,
+                   caption: str = "Warning", text: str = "Are you sure to continue?") -> bool:
+    if condition:
+        b = QtWidgets.QMessageBox.question(widget, caption, text)
+        if b == QtWidgets.QMessageBox.StandardButton.No:
+            return True
+    return False
+
+
+def get_with_chained_keys(dic: dict, keys: list, default=None):
+    """
+    调用 get_with_chained_keys(d, ["a", "b", "c"])
+    等同于 d["a"]["b"]["c"] ，
+    只不过中间任意一次索引如果找不到键，则返回 default
+
+    :param dic: 目标字典
+    :param keys: 键列表
+    :param default: 找不到键时的默认返回值
+    :return:
+    """
+    k = keys[0]
+    if k not in dic:
+        return default
+    if len(keys) == 1:
+        return dic[k]
+    return get_with_chained_keys(dic[k], keys[1:], default)
+
+
+def request_content(url: str) -> bytes:
+    req = requests.get(url)
+    if req.status_code == 200:
+        return req.content
+    return b""