Update glam requirement from 0.14.0 to 0.15.1

[dependabot]

Updates the requirements on glam to permit the latest version.

Changelog

Sourced from glam's changelog.

[0.15.1] - 2021-05-14

Changed

• Disable const_assert_eq size and alignment checks for SPIR-V targets.

[0.15.0] - 2021-05-14

Breaking changes

• Removed PartialOrd and Ord trait implementations for all glam types.
• Removed deprecated zero(), one(), unit_x(), unit_y(), unit_z(), unit_w(), identity() and Mat2::scale() methods.
• Remove problematic Quat From trait conversions which would allow creating a non-uniform quaternion without necessarily realising, including from Vec4, (x, y, z, w) and [f32; 4].

Added

• Added EulerRot enum for specifying Euler rotation order and Quat::from_euler(), Mat3::from_euler() and Mat4::from_euler() which support specifying a rotation order and angles of rotation.
• Added Quat::to_euler() method for extracting Euler angles.
• Added Quat::from_vec4() which is an explicit method for creating a quaternion from a 4D vector. The method does not normalize the resulting quaternion.
• Added Mat3A type which uses Vec3A columns. It is 16 byte aligned and contains internal padding but it generally faster than Mat3 for most operations if SIMD is available.
• Added 3D affine transform types Affine3A and DAffine3. These are more efficient than using Mat4 and DMat4 respectively when working with 3D affine transforms.
• Added 2D affine transform types Affine2 and DAffine2. These are more efficient than using Mat3 and DMat3 respectively when working with 2D affine transforms.
• Added Quat::from_affine3 to create a quaternion from an affine transform rotation.
• Added explicit to_array method to vector types to better match the matrix methods.

Changed

• Deprecated Quat::from_rotation_ypr(), Mat3::from_rotation_ypr() and Mat4::from_rotation_ypr() in favor of new from_euler() methods.
• Deprecated Quat::from_rotation_mat3() and Quat::from_rotation_mat4() in favor of new from_mat3 and from_mat4 methods.
• Deprecated TransformSRT and TransformRT which are under the transform-types feature. These will be moved to a separate experimental crate.
• Updated spriv-std dependency version to 0.4.0-alpha7.

... (truncated)

Commits

• 38f7969 Merge pull request #181 from bitshifter/prepare-0.15.1
• bb0de2a Prepare 0.15.1 release to fix SPIR-V targets.
• 95b410e Prepare for 0.15.0 release.
• 5145d22 Documentation changes around new Mat3A and affine types (#178)
• c9b28a6 Merge branch 'master' of github.com:bitshifter/glam-rs
• 76e07db Remove some unnecessary usage of as_ref.
• c92a00d More CHANGELOG items.
• 978d594 Update CHANGELOG.
• 0c89941 Undo more transform changes.
• c811738 Missed some affine usage that was still on transform-types.
• Additional commits viewable in compare view

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[NathanSWard]

Note, #2199 is preferred to this since it addresses the glam breaking changes.

[NathanSWard]

Closing this in favor of #2199 and tracking the progress with hexashpere there.

[dependabot]

OK, I won't notify you again about this release, but will get in touch when a new version is available.

If you change your mind, just re-open this PR and I'll resolve any conflicts on it.