Add support for building ICU4C with ARM and ARM64 (non-UWP)

Description

I added support for UWP ARM64 in https://unicode-org.atlassian.net/browse/ICU-20712

I've been working on adding support for ARM/ARM for non-UWP in a branch in my fork, and would like to use this ticket in order to keep the changes separate.

The changes are almost ready to merge.

Status

Assignee

Jeff Genovy

Reporter

Jeff Genovy

Labels

Reviewer

None

Time Needed

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Start date

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Components

Fix versions

Priority

major