Add gperf makedep for color name resolving
Description:
According to an upstream bug report, conky needs gperf installed at build time to support color name resolving. Amusing considering its default configuration file generator uses color names regardless.
Additional info:
- package version(s): conky 1.20.2-1
- config and/or log files: default config generator switch
- link to upstream bug report, if any: https://github.com/brndnmtthws/conky/issues/1868
Steps to reproduce:
- Generate a default config
- Run it and notice hex color errors for named colors like “lightgrey”