Changes Timeseries to TimeSeries

[glwagner]

This is a breaking change, so best done sooner rather than later since it is trivial.

A more serious question is whether we should change the semantics of the JLD2OutputWriter, which stores output in a group under the heading "timeseries" (and does not allow this to be changed). It's probably better to revisit the output writers in the broader context of improving the output writer API / functionality, however.

[codecov]

Codecov Report

Merging #618 into master will increase coverage by 4.58%.
The diff coverage is 77.77%.

@@            Coverage Diff             @@
##           master     #618      +/-   ##
==========================================
+ Coverage   69.97%   74.55%   +4.58%     
==========================================
  Files         117      117              
  Lines        2188     2209      +21     
==========================================
+ Hits         1531     1647     +116     
+ Misses        657      562      -95

Impacted Files	Coverage Δ
src/Diagnostics/Diagnostics.jl	100% <ø> (ø)	⬆️
src/Diagnostics/time_series.jl	90% <77.77%> (ø)
src/Utils/launch_config.jl	70.58% <0%> (-29.42%)	⬇️
src/Models/model.jl	91.66% <0%> (-8.34%)	⬇️
src/Solvers/pressure_solver.jl	50% <0%> (-2.64%)	⬇️
src/Solvers/solve_for_pressure.jl	100% <0%> (ø)	⬆️
src/OutputWriters/checkpointer.jl	90.47% <0%> (+2.38%)	⬆️
src/Logger.jl	80.95% <0%> (+4.76%)	⬆️
...nditions/solution_and_model_boundary_conditions.jl	94.59% <0%> (+5.4%)	⬆️
src/Fields/field.jl	78.68% <0%> (+6.55%)	⬆️
... and 6 more

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[ali-ramadhan]

A more serious question is whether we should change the semantics of the JLD2OutputWriter, which stores output in a group under the heading "timeseries" (and does not allow this to be changed). It's probably better to revisit the output writers in the broader context of improving the output writer API / functionality, however.

Yeah I think that quirk could be confusing and is where NetCDF output files are easier to work with. But NetCDFOutputWriter has other limitations currently, so some re-designing should probably be done. Making the two output writer more similar would be nice.

[ali-ramadhan]

Merging so this can be part of v0.21.0 (which will include a few other breaking changes).