Write/read one or more properties to one or more objects in a process in a BACnet device

# 🚀 Feature Request

### Relevant Package [**REQUIRED**]

Bacnet-stack which is the base of device-bacnet-c has supported write/read one or more properties to one or more objects in a process in a BACnet device, which is invoked by writepropm/readpropm.

### Description [**REQUIRED**]
But device-bacnet-c doesn't support that, the multiple write/read request is realized by a loop, in which single write/read is realized, which leads to a slower process.

### Describe the solution you'd like
n/a

### Describe alternatives you've considered
n/a

Locate the device-bacnet-c read and write implementations and compare their current single-property loop with the BACnet-stack support for writepropm/readpropm. Start by tracing how requests are built and sent; done means one request can handle one or more properties across one or more objects without the current repeated single-operation loop.

Written by the indexing model from the issue text.