GraphiteWriter: add option for escaping special characters

[Al2Klimov]

... instead of replacing them by a single character. I.e.:

 !"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~

Becomes:

%20%21%22%23%24%25%26%27%28%29%2a%2b%2c%2d%2e%2f0123456789%3a%3b%3c%3d%3e%3f%40ABCDEFGHIJKLMNOPQRSTUVWXYZ%5b%5c%5d%5e%5f%60abcdefghijklmnopqrstuvwxyz%7b%7c%7d%7e

With this one the Graphite module will have a lot less trouble (once adjusted).

[Al2Klimov]

• E.g. Perfdata with dot in label splits into separate folders icingaweb2-module-graphite#210

[julianbrost]

Can you provide more details what's this supposed to do?

E.g. Icinga/icingaweb2-module-graphite#210

If I understand correctly, that one is only about ., so what's the reason for suggesting to replace all kinds of characters?

[Al2Klimov]

Eg / also gets lost. This is for not loosing characters.