Bin format

[treelin611]

Motivate of the pull request

• To address an existing issue: https://rapidflex.feishu.cn/base/CXkHboiWGaT1jFsyVvFc8ejWnFb?table=tblL2xNFny00AigF&view=vewc4M3a58

Describe the technical details

What is currently done?

• Created libopenfpgacapnproto to implement Cap'n Proto for loading and writing binary files.
• Added functions to call Cap'n Proto builder and reader for writing to and retrieving information from binary files.
• Called member functions from device_rr_gsb to load or generate unique block information.

To be checked

• A careful review of the file structure of libopenfpgacapnproto is needed.
• libopenfpgacapnproto is copied from libvtrcapnproto and modified.
• The workflow could be optimized to eliminate redundant steps, as Cap'n Proto is already used in VTR
  

[tangxifan]

@treelin611 Good work. Minor changes are required.

[treelin611]

Here are the main updates:

1. The auto-generation of the Cap'n Proto file is included in this PR.
2. I also added a cross-test case to read a binary file and write an XML file. The written XML file is consistent with the one generated using the write_uniqueblocks command with the type set to XML.
3. The CMakeList.txt file of libopenfpgacapnproto has been cleaned up by linking the libvtrcapnproto library.

[Tulong4Dev]

Looks good.

[tangxifan]

LGTM