Plot bloch sphere

[GiggleLiu]

Implemented with Luxor and its "3D" extension Thebes.
For light theme version, please check the files in this PR.

Example 1:

julia> using YaoPlots, Yao

julia> darktheme!()

julia> bloch_sphere("|ψ⟩"=>[2.2, 0.3im+0.3]; show_projection_lines=true,
        show_angle_texts=true, show_line=true, show01=true)

Example 2: please check the example folder, the file: bloch.jl

[codecov]

Codecov Report

Attention: 2 lines in your changes are missing coverage. Please review.

Files	Coverage Δ
src/YaoPlots.jl	66.66% <ø> (+16.66%)	⬆️
src/vizcircuit.jl	81.69% <100.00%> (+1.07%)	⬆️
src/bloch.jl	98.03% <98.03%> (ø)

📢 Thoughts on this report? Let us know!.

[Roger-luo]

the plots are not showing up in light mode I think that's something that needs to be changed by default, implementation itself looks OK to me