Multi-template-matching

Added
- `MTM.computeScoreMap` which is like `cv2.matchTemplate` but checking for image types

Changed
- `MTM.findMatches` automatically cast 16-bit images and/or template to 32-bit

Changed
- use pandas dataframe to return list of hits for `MTM.matchTemplates` and `MTM.findMatches`


Changelog
All notable changes to this project will be documented in this file.

The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).

Changed
- Warning if template has same dimensions than the image


Changelog
All notable changes to this project will be documented in this file.

The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).

Changed
- plotDetections return the figure object, allowing saving to a file