Implement heterogenous memory support

[jahofmann]

Currently, only two types of memory are know to TaPaSCo:

• The main DDR memory
• PE local memory

Most devices however have multiple different memories.

This issue tracks the progress of adding support for different memory views of different PEs.

• Add memory view information to the status core
• Read memory information in new runtime
• Add the necessary API to allocate data in the required memory regions

[jahofmann]

The new runtime already supports arbitrary memories. Each memory can have one allocator and a number of DMA engines that can be used to access the memory from the host.

Later on there might be need for DMA engines between memories on the device, but this is currently not considered.

Each PE also has a list of memories it "sees" in its address space and the corresponding offsets to access that region of memory.