Add PSoC6 flashing support via OpenOCD

[Copilot]

• Analyze existing flashing implementations (ESP, STM32, UF2)
• Review repository structure and database for PSoC6 boards
• Set up development environment with uv
• Research PSoC6 flashing requirements and tools (OpenOCD via SWD/JTAG)
• Add PSoC6 port to PORT_FWTYPES configuration (.hex, .elf, .bin support)
• Implement PSoC6 flashing function using OpenOCD with KitProg3 interface
• Add PSoC6 support to main flash_mcu function
• Add PSoC6 bootloader activation method (NONE - uses OpenOCD directly)
• Create comprehensive tests for PSoC6 flashing functionality (14 tests passing)
• Update documentation with detailed PSoC6 support information
• Remove virtual environment files from repository (cleaned up venv directory)
• Manual verification of PSoC6 flashing (requires actual hardware)

Implementation Summary:

• Added PSoC6 port support with .hex, .elf, and .bin firmware formats
• Implemented OpenOCD-based flashing via SWD/JTAG interface
• Default KitProg3 interface configuration (common on Infineon dev boards)
• Proper error handling and timeout management
• Comprehensive test coverage including mocked OpenOCD interactions
• No separate bootloader activation needed (handled directly by OpenOCD)
• Cleaned up repository by removing accidentally committed venv directory

Original prompt

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This section details on the original issue you should resolve

<issue_title>Support flashing to pscoc6</issue_title>
<issue_description>https://ifx-micropython.readthedocs.io/en/latest/psoc6/installation.html</issue_description>

Comments on the Issue (you are @copilot in this section)

Fixes #47

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[codecov]

Codecov Report

❌ Patch coverage is 77.77778% with 16 lines in your changes missing coverage. Please review.
✅ Project coverage is 73.15%. Comparing base (b9b4060) to head (889f6f3).

Files with missing lines	Patch %	Lines
mpflash/flash/psoc6.py	79.71%	11 Missing and 3 partials ⚠️
mpflash/flash/__init__.py	33.33%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #48      +/-   ##
==========================================
+ Coverage   73.03%   73.15%   +0.12%     
==========================================
  Files          52       53       +1     
  Lines        2737     2809      +72     
  Branches      420      431      +11     
==========================================
+ Hits         1999     2055      +56     
- Misses        606      619      +13     
- Partials      132      135       +3     

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[Josverl]

Please do not check in the .venv or venv to the repo, @copilot

[Copilot]

Please do not check in the .venv or venv to the repo, @copilot

Removed the venv directory from the repository and updated .gitignore to prevent future accidental commits. Changes committed in d5c3c8c.