Dev/multiple rois in aare (#263)

Reading multiple ROI's for aare 

- read_frame, read_n etc throws for multiple ROIs
- new functions read_ROIs, read_n_ROIs 
-  read_roi_into (used for python bindings - to not copy) 

all these functions use get_frame or get_frame_into where one passes the
roi_index
## Refactoring:
- each roi keeps track of its subfiles that one has to open e.g.
subfiles can be opened several times
- refactored class DetectorGeometry - keep track of the updated module
geometries in new class ROIGeometry.
- ModuleGeometry updates based on ROI

## ROIGeometry: 
- stores number of modules overlapping with ROI and its indices
- size of ROI 

Note: only tested size of the resulting frames not the actual values

---------

Co-authored-by: Erik Fröjdh <erik.frojdh@psi.ch>
Co-authored-by: Erik Fröjdh <erik.frojdh@gmail.com>

RELEASE.md

@@ -12,6 +12,10 @@
 - Removed redundant arr.value(ix,iy...) on NDArray use arr(ix,iy...)
 - Removed Print/Print_some/Print_all form NDArray (operator << still works)
 - Added const* version of .data()
+- reading multiple ROI's supported for aare. 
+    - Use ``read_roi/rois`` to read multiple ROIs for one frame, the index of a specific ROI to only read that ROI
+    - Use ``read_n_with_roi`` to read multiple frames for a specific ROI. 
+    - Note ``read_frame`` and ``read_n`` is not supported for multiple ROI's. 
 
 ### Bugfixes: