formula: dlbeer/quirc

[MeteorsLiu]

Summary

• Add the dlbeer/quirc LLAR Formula with exact v1.0, v1.1, and v1.2 thresholds.
• Preserve the Conan Center portability patches for v1.0 and v1.1, shared/fPIC defaults, and the max_regions option.
• Install the public header, library, ISC license, and relocatable quirc.pc metadata.

Validation

• LLAR 9c062aa5c4b1724bfd30cb72f7e0bda136f9c078 local llar test --verbose passed for v1.0, v1.1, and v1.2 on explicit darwin/arm64.
• Passed v1.0 with max_regions=65534, v1.2 with max_regions=65534, v1.2 with shared=ON, and v1.2 with fPIC=OFF.
• Invalid max_regions=1 was rejected by the Formula filter.
• Repeated v1.2 default testing passed on a cache hit and reran the consumer.
• v0.9 was rejected because no Formula exists below v1.0.

Closes #250

[fennoai]

The version thresholds, Conan portability patches, installed interface, and pkg-config consumer path are internally consistent. Using LLAR 9c062aa5c4b1724bfd30cb72f7e0bda136f9c078, I validated v1.0, v1.1, and v1.2 on linux/amd64, plus the v1.2 shared and max_regions=65534 option path. The remaining blocker is the repository's changed-module discovery contract, which rejects this multi-threshold diff before the platform test matrix runs.

[fennoai]

[P1] Keep the module to one changed Formula directory

The repository's .github/scripts/find_changed_modules.gsh unconditionally aborts when a module changes more than one directory containing an *_llar.gox file. Adding this v1.1 threshold alongside the new v1.0 and v1.2 thresholds makes the fixed diff resolve to three Formula directories, so the Find changed modules job panics before any llar test matrix can be generated and this PR cannot pass the required workflow. Please first add CI support for validating multiple thresholds, or publish the thresholds in diffs that each change only one Formula directory.