Add 8 Verilog IPs to Digital-Verilog-IPs

[Vamshi143panda]

This pull request adds the following Verilog IPs:

1. Encoder 8b/10b
2. Two Flip-Flop Synchronizer
3. BIST Fault Free
4. Clock Divider
5. Glitch Filter
6. Parity Generator and Checker
7. Power Gating IP
8. RLE Compressor

Each IP is submitted as a separate commit as per repository guidelines.

Included:

• Verilog source files
• eSim test circuit project files

Kindly review and provide feedback.

Thank you.