[FEATURE] Vertical graph and axis orientation

[lenianiva]

Description of the requested feature

Currently there is no orientation option for a graph widget. Would it be possible to have an option to set the orientation and direction of time on the graph widget?

Proposed configuration syntax

There would be two additional flags on the graph widget. One sets the origin (topleft, topright, botleft, botright) when the graph's value doesn't go negative, and one sets whether the y axis is vertical.

(graph
					:width 20
					:height 100 
                                        :yaxis-vertical false
                                        :origin "botleft"
					:value {EWW_CPU.avg}
					:time-range "30s"
					:dynamic false
					:max 100
					:min 0))

which would create a graph widget with y axis pointing to the right and x axis pointing to the top.

Another way is to have three boolean flags, flipx, flipy, and vertical. flipx (resp. flipy) when enabled makes the x (resp. y) axis go the other way, and if the graph is vertical the two axes are exchanged.

Additional context

The transform widget does not work on the graph widget

[lenianiva]

PR #1113