semver 1.0.0

Semantic Versioning library.

Highlights

SemVer parsing and validation, cleaning and coercion, comparison, serialization, hashing, streams, and optional C++20 formatting.
Configurable unsigned component types with checked construction and mixed-type comparison.
Documented version ranges, increments, intersection checks, and minimum-version queries.
Dependency-free single header with the installable semver::semver CMake target.

version changed from a fixed std::uint16_t structure with public fields and a predefined prerelease enum to version<I1, I2, I3> with accessors, arbitrary SemVer prerelease identifiers, and build metadata.
Replace member parsing and the _version literal with the free parse, try_parse, try_parse_range, from_string, from_chars, and to_chars APIs and the _semver literal where supported.
Replace comparators_option, satisfies_option, and semver::range::satisfies() with normal comparison operators or compare(), parsed range_set::contains(), text-based satisfies(), and prerelease_policy.

Component types must be unsigned; the defaults changed from int to std::uint32_t. Construction is checked, and versions with different component types compare and match ranges without narrowing.
Parsing now includes try_parse, try_parse_range, from_string, from_chars, to_chars, clean, and coerce. Parse result types convert to bool explicitly, and qualifier accessors return non-owning std::string_view values.
version_compare_option was replaced by prerelease_policy::{exclude, include} for range matching only. Normal comparison follows SemVer prerelease precedence and ignores build metadata; compare_with_build() adds an explicit deterministic metadata tie-break.
Range syntax now supports */x/X, partial versions, !=, ~, ^, whitespace intersections, and ||. Hyphen ranges are not supported.
Added diff() and inc() with the shared version_change enum, min_satisfying(), max_satisfying(), min_version(), intersects(), hashing, streams, and optional C++20 formatting.
CMake package metadata now reports 1.0.0, requests C++17, uses same-major compatibility, and is architecture-independent.

Requires C++17. CMake integration requires CMake 3.15+.