Pattern of http signature

[bobbyben]

Hi

This pattern is not compliant with Api Manager Tyk Io.
This Api Manager allow signature without quotation mark.

Example :
Work fine with tyk.io
Signature keyId=${keyId},algorithm=${algorithm},signature=${signature}

But don't compliant with this regexp
"(?\w+)=(("(?[^\"])")|(?\d+\.?\d))"

http-signatures-java/src/main/java/org/tomitribe/auth/signatures/Signature.java

Line 137 in 3a84217

.compile("(?<key>\\w+)=((\"(?<stringValue>[^\"]*)\")|(?<numberValue>\\d+\\.?\\d*))");

Is it possible to make optional quotation mark in this pattern ?

Thanks

[dblevins]

@bobbyben If you send a PR with a test case, I'll be happy to merge it.