WString: unify numeric conversion and fix assignments#8526

Merged

mcspr merged 9 commits intoesp8266:masterfrom

mcspr:arduino-string-can-assign-stuff

Apr 5, 2022

Commits on Mar 31, 2022

Commits on Apr 5, 2022

Merge branch 'master' into arduino-string-can-assign-stuff
mcspr
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