Collections (in particular, hashmaps) #234

Job	Run time
determine_asy_version	8s
linux-sanity / build-and-test-asy-compact-zero	3m 15s
lint-non-gui-files / check-if-non-gui-py-files-changed	7s
lint-non-gui-files / lint-python-files	0s
build-gui / build-gui-linux	10s
build-asy-windows / configure-windows-msvc-x64	2m 2s
build-asy-linux / configure-linux-release-x64	44s
build-gui / build-gui-windows	48s
build-asy-linux / build-linux-release-x64	3m 25s
build-asy-windows / build-windows-msvc-x64	2m 55s
build-asy-linux / linux-asy-docgen	0s
build-asy-linux / package-asymptote-artifacts	0s
test-asy-linux	0s
package-asy-install-file	1s
test-asy-windows	1s
precheck-pass	1s
	13m 37s

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