Caching

[some-mthfka]

Caching. Review and testing are advised.

#77

[some-mthfka]

welp, i don't get why it's failing

not sure how to fix the warnings either

##[warning]The package summary should not end with a period.
[ELISP-CHECK] Running check: elisp-check-checkdoc
[ELISP-CHECK] Checking file: /home/runner/work/google-translate/google-translate/google-translate-cache-ui.el
##[warning]Possibly using local file with different prefix `google-translate-default-ui.el'

[stardiviner]

welp, i don't get why it's failing

not sure how to fix the warnings either

##[warning]The package summary should not end with a period.
[ELISP-CHECK] Running check: elisp-check-checkdoc
[ELISP-CHECK] Checking file: /home/runner/work/google-translate/google-translate/google-translate-cache-ui.el
##[warning]Possibly using local file with different prefix `google-translate-default-ui.el'

It's just warning from package-lint checking. Warning that elisp file not using filename prefix.

[stardiviner]

Also, can you write a test for this caching feature?
Thanks for this PR, this PR still need @atykhonov 's reviewing.

[some-mthfka]

Also, can you write a test for this caching feature?

Sure, added some tests.

[stardiviner]

@Grigorievich Great that you added test patch. Thanks