File nvdsmeta_schema.h in branch ds_6.0 missing

[vertcli]

File nvdsmeta_schema.h is missing inside folder includes at branch ds_6.0

[monjha]

you don't need it to be modified in ds6.0.

[liaoweiguo]

in ds 6.1, you have to add 4 fields to struct NvDsEventMsgMeta

guint occupancy; guint source_id; guint lccum_cnt_entry; guint lccum_cnt_exit;