coin-lemon: use correct BSL-1.0 license identifier (and generate v2 packages)

[SpaceIm]

Short identifier of Boost Software License 1.0 is BSL-1.0, not Boost 1.0: https://spdx.org/licenses/BSL-1.0

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• I've read the contributing guidelines.
• I've used a recent Conan client version close to the currently deployed.
• I've tried at least one configuration locally with the conan-center hook activated.

[ghost]

I detected other pull requests that are modifying coin-lemon/all recipe:

• coin-lemon: fixed C++17 and C++20 compilation warnings. #15516

This message is automatically generated by https://github.com/ericLemanissier/conan-center-conflicting-prs so don't hesitate to report issues/improvements there.

[github-actions]

Hooks produced the following warnings for commit 64d7a00

coin-lemon/1.3.1

post_package(): WARN: [MISSING SYSTEM LIBS (KB-H043)] Library './lib/libemon.so' links to system library 'm' but it is not in cpp_info.system_libs.

[conan-center-bot]

Conan v1 pipeline ✔️

All green in build 2 (681fa70a29b939ff791bca87a375f5b570772444):

• coin-lemon/1.3.1@:
  All packages built successfully! (All logs)

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Conan v2 pipeline (informative, not required for merge) ✔️

Note: Conan v2 builds are informative and they are not required for the PR to be merged.

All green in build 2 (681fa70a29b939ff791bca87a375f5b570772444):

• coin-lemon/1.3.1@:
  All packages built successfully! (All logs)