Release 0.45.0

[taiki-e]

Blocked on https://github.com/openrr/urdf-viz/pull/240, https://github.com/openrr/urdf-viz/pull/175.

Changes:

• https://github.com/openrr/urdf-viz/pull/240
• https://github.com/openrr/urdf-viz/pull/228
• https://github.com/openrr/urdf-viz/pull/190
• https://github.com/openrr/urdf-viz/pull/231
• https://github.com/openrr/urdf-viz/pull/234
• https://github.com/openrr/urdf-viz/pull/236
• https://github.com/openrr/urdf-viz/pull/238
• https://github.com/openrr/urdf-viz/pull/239
• https://github.com/openrr/urdf-viz/pull/242
• https://github.com/openrr/urdf-viz/pull/175