Add methods to enable live updating of Tables

[drmille2]

add UpdateByAsc and UpdateByDesc methods
add GetOrder method

these methods provide the ability to clear the contents of an existing table so that new data can be added prior to re-rendering, enabling live updating tables

example usage:

    m.table.ClearRows()
    var rows [][]string
    for _, m := range msg {
        rows = append(rows, toRow(&m))
    }
    m.table.AddRows(rows)
    if m.orderPhase == 0 {
        m.table.OrderByAsc(m.orderColumn)
    } else {
        m.table.OrderByDesc(m.orderColumn)
    }

[drmille2]

A few minor additive changes in this PR. Was trying your very nice Table module out with the intent of using it as a live updating view for a gRPC service, but I was not able to find any way in the implementation to update rows after adding them (either updating their content, or removing rows that had expired).

I started by adding a ClearRows() method, but found that just clearing the rows and re-adding a new set during the model Update() resulted in any ordering being lost, and just persisting & re-executing OrderByColumn() would toggle between ascending and descending. Adding in the OrderByAsc/Desc provided a deterministic way of re-applying any previous ordering that can now be retrieved with GetOrder().

Works pretty well in practice, happy for any feedback or suggestions.

[76creates]

Hey there @drmille2, thanks for taking time to contribute to the stickers!
I agree with the changes for sure, toggling is not really deterministic and requires potentially 2 renders to get you to where you want to be.
It would be good to remove OrderByColumn at some point, but for backwards compatibility we could keep it for now. Please add Depricated comment box to the function so IDE's can warn users about this.

[Update]
Please update examples that use sorting.

Sorry for the lag, I had no time to commit to stickers past few months, still is bit hectic but I will try to be around more :)

[76creates]

@jon4hz there were lots of breaking updates on #10, packages were moved to separate directories, can you please update the PR?

[drmille2]

Went ahead and merged in the latest changes from master, so the PR should be compatible with the breaking changes from #10 now, and added a deprecation warning to OrderByColumn.

[76creates]

Went ahead and merged in the latest changes from master, so the PR should be compatible with the breaking changes from #10 now, and added a deprecation warning to OrderByColumn.

Not sure how I missed this one, sorry for lag, will check it out soon!

[drmille2]

Any updates on this--concerns or other things you'd like to see addressed?

[spogatetz]

@76creates Any chance this can get merged? Or are there any workarounds I can use? I tried recreating the table but it doesn't seem to be working.

[76creates]

@spogatetz checked it again, all legit, merged ⚡

[76creates]

Released with 1.4.1