Feature: Worldmap line color flexibility

[vpithart]

What?

Line colors have been colored either statically (color, border) or by nagios-state (green=OK, yellow=warning, red=down). This PR adds flexibility to configure both coloring approaches together.

Why?

We need the map to serve both documentation and monitoring purposes.

How?

The line objects have a couple of new configuration options:

• fixed_colors
• line_color
• line_color_border
• stateful_outline
• stateful_outline_width
• stateful_outline_blur

Now, setting fixed_color=yes and stateful_outline=(any value except none) does the trick.

[LarsMichelsen]

The feature here also sounds good.

I'm asking myself some questions about it:

1.) At the moment we have two modes for coloring condition dependent lines: a) set the color depending on the status and b) set the color depending on the perfdata for weather map lines.

These are currently configured with the option line_type=....

With this new option we should consider how to switch this consistently.

Does it e.g. make sense to introduce another line_type here? Or does it limit it too much and we should rather add an option line_color_type, which then allows switching between "state", "weathermap", "fixed"?

2.) So far all line options have the prefix line_. So the new options should all have this prefix too.

3.) Should we then not make the border configurable analogous to the line color? e.g. with these options

line_outline=yes/no
line_outline_width=1
line_outline_blur=1
line_outline_color_type=state/weathermap/fixed
line_outline_fixed_color=#fff

[vpithart]

Re (2) yes I do agree to name line_* them all.

Re (1) and (3) I haven't used weathermap-based colors so far thus I've ignored that feature at all.
Does this mean that types

        '13' => '---%---><---%---',
        '14' => '--%+BW-><-%+BW--',
        '15' => '---BW--><--BW---',

are those coloured by perfdata?

Then maybe only having stateful_outline=yes would mean that the outline is also coloured by perfdata.