Batbot contours

[BryonLewis]

combination of #276 with batbot spectrogram generation.

• based on batbot-integration right now
• Is on a batbot branch that allow for the output of masks
• Adds ./batbot/core/utils/contour_utils.py which will take an image and generate contours for it
  • I'm using a new 'masks' location
  • Based off of Mike's Issue 239 generate smooth svg #276 PR
• Adds to the SpectrogramImage the concept of a Masks file
  • Adds to all relevant locations access to the masks
  • The return output for spectrogram info will now contain the masks
• Model Updates
  • Pulse_Metadata - contains pulse information and contours for now, will in the future contain curves and knee, toe, heel
    data
  • mostly contains the contours currently
  • in ./bats_ai/core/views/recording.py include endpoint /pulse_data that gets the pulse metadata and contours
• Client Updates
  • Adds a new image layer for masks in geoJSUtils.ts
  • contourLayer.ts added for rendering contours Taken from Issue 239 generate smooth svg #276
    • Modified slightly so that will update the style when scaling or opacity changes
  • SpectrogramImageContentMenu.vue take from Issue 239 generate smooth svg #276
    • Modified so that it has the maks or the contours
    • contours have a warning because it can take a few seconds to update
    • Both masks, contours and the base image have the ability to change the opacity