Sleep minor revisions

[jhmigueles]

This contains some minor revisions of code related to the detection of the sleep period time. These are the minor bugs I found while testing the HorAngle algorithm. There is no issue related, just let me know if you want me to create the issue for these.

• Detection of daylight saving time days improved: I found that partial last days, those recording finishing between 11:00 and 11:59 were mistaken as daylight saving time days, and then the end of the SPT was shifted one hour.
• Fraction_night_invalid is now re-calculated for the 6pm-6pm windows in the days classified as "daysleeper".

Checklist before merging:

• Existing tests still work (check by running the test suite, e.g. from RStudio).
• Added tests (if you added functionality) or fixed existing test (if you fixed a bug).
• Clean code has been attempted, e.g. intuitive object names and no code redundancy.
• Documentation updated:
  • Function documentation
  • Chapter vignettes for GitHub IO
  • Vignettes for CRAN
• Corresponding issue tagged in PR message. If no issue exist, please create an issue and tag it.
• Updated release notes in inst/NEWS.Rd with a user-readable summary. Please, include references to relevant issues or PR discussions.
• Added your name to the contributors lists in the DESCRIPTION file, if you think you made a significant contribution.
• GGIR parameters were added/removed. If yes, please also complete checklist below.

If NEW GGIR parameter(s) were added then these NEW parameter(s) are:

• documented in man/GGIR.Rd
• included with a default in R/load_params.R
• included with value class check in R/check_params.R
• included in table of vignettes/GGIRParameters.Rmd with references to the GGIR parts the parameter is used in.
• mentioned in NEWS.Rd as NEW parameter

If GGIR parameter(s) were deprecated these parameter(s) are:

• documented as deprecated in man/GGIR.Rd
• removed from R/load_params.R
• removed from R/check_params.R
• removed from table in vignettes/GGIRParameters.Rmd
• mentioned as deprecated parameter in NEWS.Rd
• added to the list in R/extract_params.R with deprecated parameters such that these do not produce warnings when found in old config.csv files.

[vincentvanhees]

Thanks Jairo, please find my comments below. I am happy to help work on this, but maybe easier if you could first have a look at it.