v1.0.0

This is the initial release of this module, which was extracted from
github.com/docker/docker at commit 572ca799db4b67b7be35904e487f0cc51c3f9f06

Code was extracted using the following steps:

# install filter-repo (https://github.com/newren/git-filter-repo/blob/main/INSTALL.md)
brew install git-filter-repo

cd ~/projects

# create a temporary clone of docker
git clone https://github.com/docker/docker.git moby_pubsub_temp
cd moby_pubsub_temp

# for reference
git rev-parse HEAD
# --> 572ca799db4b67b7be35904e487f0cc51c3f9f06

# remove all code, except for pkg/pubsub, license, and notice, and rename pkg/pubsub to /
git filter-repo --path pkg/pubsub/ --path LICENSE --path NOTICE --path-rename pkg/pubsub/:

# remove canonical imports
git revert -s -S 585ff0ebbe6bc25b801a0e0087dd5353099cb72e

# initialize module
go mod init github.com/moby/pubsub
go mod tidy