feat(color_button): patched ColorButton from pyqtgraph to be able to be opened in another QDialog

bec_widgets/widgets/buttons/color_button.py

@@ -0,0 +1,17 @@
+import pyqtgraph as pg
+
+
+class ColorButton(pg.ColorButton):
+    """
+    A ColorButton that opens a dialog to select a color. Inherits from pyqtgraph.ColorButton.
+    Patches event loop of the ColorDialog, if opened in another QDialog.
+    """
+
+    def __init__(self, *args, **kwargs):
+        super().__init__(*args, **kwargs)
+
+    def selectColor(self):
+        self.origColor = self.color()
+        self.colorDialog.setCurrentColor(self.color())
+        self.colorDialog.open()
+        self.colorDialog.exec()