- use general cmake template
- remove ros related code
- add config files for linters and formatters

- impl Object, BBox2D, Point2D and PointCloud
- store detection results in Object

colorspace conversion is only supported when USE_GPU=1

- InferenceFrondendType and InferenceBackendType
- InferenceRuntime

- Blob will be merged into Tensor class later
- Tensor class will be based on SyncedMemory later

add Infer() method, just passthrough the results from backend

in InferenceRuntime

i.e., the output from DeepSORT tracker should be in TLBR format, no matter what format used inside

- two Update() functions for det-trk, and det-feat-trk
- GetParams() functions to get or modify parameters
- Name() for model name

- input/output of ByteTracker is TLBR
- input/output of STrack is TLWH
- input/output of kalman filter is XYAH