Benchmarking the reflection API

I have modified the source files as follows:

> diff --git a/go.mod b/go.mod
> index 0491f2d..eb9c282 100644
> --- a/go.mod
> +++ b/go.mod
> @@ -1,12 +1,13 @@
> module github.com/apache/openwhisk-client-go
>
> -go 1.15
> +go 1.16
>
> require (
> github.com/BurntSushi/toml v0.3.1 // indirect
> github.com/cloudfoundry/jibber_jabber v0.0.0-20151120183258-bcc4c8345a21
> github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc // indirect
> github.com/fatih/color v1.10.0
> + github.com/goccy/go-reflect v1.1.0
> github.com/google/go-querystring v1.0.0
> github.com/hokaccha/go-prettyjson v0.0.0-20210113012101-fb4e108d2519
> github.com/nicksnyder/go-i18n v1.10.1
> diff --git a/go.sum b/go.sum
> index 25fcb1b..86cd625 100644
> --- a/go.sum
> +++ b/go.sum
> @@ -11,6 +11,8 @@ github.com/fatih/color v1.10.0/go.mod h1:ELkj/draVOlAH/xkhN6mQ50Qd0MPOk5AAr3maGE
> github.com/fsnotify/fsnotify v1.4.7/go.mod h1:jwhsz4b93w/PPRr/qN1Yymfu8t87LnFCMoQvtojpjFo=
> github.com/fsnotify/fsnotify v1.4.9 h1:hsms1Qyu0jgnwNXIxa+/V/PDsU6CfLf6CNO8H7IWoS4=
> github.com/fsnotify/fsnotify v1.4.9/go.mod h1:znqG4EE+3YCdAaPaxE2ZRY/06pZUdp0tY4IgpuI1SZQ=
> +github.com/goccy/go-reflect v1.1.0 h1:kiT3+exv9ULtdpawlMzCGT1y5bWOmuY3jgS86GB9t1s=
> +github.com/goccy/go-reflect v1.1.0/go.mod h1:n0oYZn8VcV2CkWTxi8B9QjkCoq6GTtCEdfmR66YhFtE=
> github.com/golang/protobuf v1.2.0/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
> github.com/golang/protobuf v1.4.0-rc.1/go.mod h1:ceaxUfeHdC40wWswd/P6IGgMaK3YpKi5j83Wpe3EHw8=
> github.com/golang/protobuf v1.4.0-rc.1.0.20200221234624-67d41d38c208/go.mod h1:xKAWHe0F5eneWXFV3EuXVDTCmh+JuBKY0li0aMyXATA=
> diff --git a/whisk/client.go b/whisk/client.go
> index 0bd25cd..5f18a8f 100644
> --- a/whisk/client.go
> +++ b/whisk/client.go
> @@ -29,12 +29,13 @@ import (
> "net"
> "net/http"
> "net/url"
> - "reflect"
> "regexp"
> "runtime"
> "strings"
> "time"
>
> + reflect "github.com/goccy/go-reflect"
> +
> "github.com/apache/openwhisk-client-go/wski18n"
> )
>
> diff --git a/whisk/util.go b/whisk/util.go
> index 683c680..32e7a09 100644
> --- a/whisk/util.go
> +++ b/whisk/util.go
> @@ -21,9 +21,10 @@ import (
> "errors"
> "fmt"
> "net/url"
> - "reflect"
> "strings"
>
> + reflect "github.com/goccy/go-reflect"
> +
> "github.com/apache/openwhisk-client-go/wski18n"
> "github.com/fatih/color"
> "github.com/google/go-querystring/query"