feat: support most remote urls (#1061)

* feat: support most remote urls

This adds support for s3:// http:// https:// and most other go-getter style urls by

- Adding http downloader
- Adding s3 downloader that authenticates with aws sdk shared credentials
- Changing the parser to accept remote formats that do not include '::'
- Removing validation that required go-getter urls to contain '@' which is not required by go-getter spec

Resolves #831

Signed-off-by: joshwoodcock <ltdwoodcock@gmail.com>

* Fix nil region

Signed-off-by: Josh Woodcock <b.woodcock@partner.samsung.com>

* fix golangci

Signed-off-by: xiaomudk <xiaomudk@gmail.com>

* fix testcase error

Signed-off-by: xiaomudk <xiaomudk@gmail.com>

* optimize code

Signed-off-by: yxxhero <aiopsclub@163.com>

* fix handle error

Signed-off-by: zhuxixi179 <zhuxixi179@hellobike.com>

---------

Signed-off-by: joshwoodcock <ltdwoodcock@gmail.com>
Signed-off-by: Josh Woodcock <b.woodcock@partner.samsung.com>
Signed-off-by: xiaomudk <xiaomudk@gmail.com>
Signed-off-by: yxxhero <aiopsclub@163.com>
Signed-off-by: zhuxixi179 <zhuxixi179@hellobike.com>
Co-authored-by: joshwoodcock <ltdwoodcock@gmail.com>
Co-authored-by: Josh Woodcock <b.woodcock@partner.samsung.com>
Co-authored-by: yxxhero <aiopsclub@163.com>
Co-authored-by: zhuxixi179 <zhuxixi179@hellobike.com>

go.mod

@@ -49,7 +49,7 @@ require (
 	github.com/Azure/go-autorest/tracing v0.6.0 // indirect
 	github.com/Masterminds/goutils v1.1.1 // indirect
 	github.com/a8m/envsubst v1.3.0 // indirect
-	github.com/aws/aws-sdk-go v1.44.122 // indirect
+	github.com/aws/aws-sdk-go v1.44.251
 	github.com/bgentry/go-netrc v0.0.0-20140422174119-9fd32a8b3d3d // indirect
 	github.com/blang/semver v3.5.1+incompatible
 	github.com/dimchansky/utfbom v1.1.1 // indirect