Add support for a lot more ProfileFormat functions

[synfinatic]

Good idea from @rgarrigue to support sprig for
functions.

Fixes: #244

[codecov]

Codecov Report

Merging #245 (4ea6cfb) into main (2b75983) will increase coverage by 0.19%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##             main     #245      +/-   ##
==========================================
+ Coverage   44.07%   44.26%   +0.19%     
==========================================
  Files          11       11              
  Lines        1754     1760       +6     
==========================================
+ Hits          773      779       +6     
  Misses        916      916              
  Partials       65       65              

Impacted Files	Coverage Δ
sso/cache_roles.go	71.36% <100.00%> (+0.80%)	⬆️

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 2b75983...4ea6cfb. Read the comment docs.