…82.1 (#7000)

* Change SigV4 canonical request formatting.

This change ensures that query parameters are sorted (this will
facilitate more easily adding support for users to supply signed query
params in a future PR), and changes the way whitespace normalization is
done for headers (converts all non-space whitespace to space chars, then
condenses all whitespace sequences into a single space, as is outlined
in the spec).

* Run `mvn com.coveo:fmt-maven-plugin:format`.

* Sort query param names from map keys.

* Fix #7008

Adds method to correctly encode parts of signed URLs. The
`Rfc3986UriEncode` method should be used to URI-encode various parts of
a signed URL. All path parts should be encoded the same, except for the
part identifying the GCS resource, which should not URI-encode forward
slashes. Query parameters (support coming in a later commit), should
perform this encoding on parameter keys and values, but should also
encode forward slashes.

Other Cloud providers also perform this same encoding; see examples pseudo
code below:
https://docs.aws.amazon.com/AmazonS3/latest/API/sig-v4-header-based-auth.html
https://docs.aws.amazon.com/AWSECommerceService/latest/DG/Query_QueryAuth.html

* Also check encoding behavior for /~._- chars.

Adds checks for ~._- chars, as well as notes for when the / char should
be encoded.

* Allow adding arbitrary query params to signed URLs

TODO: Add unit tests to detect correct sorting (move out of integration
test).
TODO: Add support for V2 signing, along with tests.

* Move sorting check test to unit tests.

* Allow query params to be added to v2 signed urls

Includes tests.

* chore: add synth.py for common files, move README, repo-metadata

* chore: run synth to generate common files

* feat: add parent pom

* fix: downgrade google-cloud-core to fix test

* chore: ignore dependency usage for test implementations

* test: configure service account for integration tests

…o v1-rev20191011-1.30.3 (#7)

…onfig to v0.3.1 (#29)

* feat: add support for archive storage class

* feat: fix review changes

* feat: fix review changes

* created CHANGELOG.md [ci skip]

* updated README.md [ci skip]

* updated versions.txt [ci skip]

* updated google-cloud-storage/pom.xml [ci skip]

* updated pom.xml [ci skip]