[WIP] Added scheduler

src/cpl_reactive_extensions/subject/behavior_subject.py

@@ -0,0 +1,24 @@
+from typing import Type
+
+from cpl_core.type import T
+from cpl_reactive_extensions.subject.subject import Subject
+
+
+class BehaviorSubject(Subject):
+    def __init__(self, _t: Type[T], value: T):
+        Subject.__init__(self, _t)
+
+        if not isinstance(value, _t):
+            raise TypeError(f"Expected {_t.__name__} not {type(value).__name__}")
+
+        self._t = _t
+        self._value = value
+
+    @property
+    def value(self) -> T:
+        return self._value
+
+    def next(self, value: T):
+        super().next(value)
+
+        self._value = value