Support ALL criteria in SEARCH

[arnisoph]

Signed-off-by: Arnold Bechtoldt arnold.bechtoldt@inovex.de

criteria := imap.NewSearchCriteria()
c.UidSearch(criteria) // returns: []  Error in IMAP command UID SEARCH: Missing search parameters (0.001 + 0.000 secs).

Current behaviour:

Z12hwA EXAMINE INBOX
* FLAGS (\Answered \Flagged \Deleted \Seen \Draft)
* OK [PERMANENTFLAGS ()] Read-only mailbox.
* 6 EXISTS
* 6 RECENT
* OK [UNSEEN 1] First unseen.
* OK [UIDVALIDITY 1578248986] UIDs valid
* OK [UIDNEXT 7] Predicted next UID
Z12hwA OK [READ-ONLY] Examine completed (0.001 + 0.000 secs).
hw_TVQ UID SEARCH CHARSET UTF-8
hw_TVQ BAD Error in IMAP command UID SEARCH: Missing search parameters (0.001 + 0.000 secs).
IximMg LOGOUT
* BYE Logging out
IximMg OK Logout completed (0.001 + 0.000 secs).

[codecov]

Codecov Report

Merging #330 into master will increase coverage by 0.01%.
The diff coverage is 100%.

@@            Coverage Diff            @@
##           master    #330      +/-   ##
=========================================
+ Coverage   73.39%   73.4%   +0.01%     
=========================================
  Files          32      32              
  Lines        3514    3516       +2     
=========================================
+ Hits         2579    2581       +2     
  Misses        642     642              
  Partials      293     293

Impacted Files	Coverage Δ
client/cmd_selected.go	73.17% <ø> (ø)	⬆️
search.go	62.12% <100%> (+0.32%)	⬆️

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[emersion]

LGTM, thanks!