Integrated Intel's object tracker, added spatial object tracker

[SzabolcsGergely]

Integrated Intel's object tracker and added spatial object tracker.

Examples:

29_1_object_tracker.py : performs object tracking
29_2_spatial_object_tracker.py : performs object tracking with spatial data

2 types of tracking are supported:
ZERO_TERM_IMAGELESS
ZERO_TERM_COLOR_HISTOGRAM

Related PR: luxonis/depthai-core#92

[Luxonis-Brandon]

YES!

[dhruvmsheth]

Might be a bit early to pop in, but @szabi-luxonis could you also share the depthai version being used here. This example could be a great fit for https://discuss.luxonis.com/d/137-need-advice-i-m-an-artist-and-a-techy-working-on-a-piece-for-my-thesis/12, so helping him out.

Btw, this looks amazing!

[SzabolcsGergely]

Might be a bit early to pop in, but @szabi-luxonis could you also share the depthai version being used here. This example could be a great fit for https://discuss.luxonis.com/d/137-need-advice-i-m-an-artist-and-a-techy-working-on-a-piece-for-my-thesis/12, so helping him out.

Btw, this looks amazing!

python3 -m pip install depthai==2.1.0.0.dev+efef5dca568cc4cec965216153e3a8905db3d119 --extra-index-url https://artifacts.luxonis.com/artifactory/luxonis-python-snapshot-local

[dhruvmsheth]

The spatial object tracker as well as object tracker work really well, and fast. I feel eventually adding a functionality to retrieve x,y,z coordinates of only a particular ID would be really useful. So, for eg - ID [0] and [1] is being tracked. Adding functionality to only get the coordinates for one of them. eg - only getting data for [ 0 ], would make it useful for different use cases too.