integrate tests package to perform code quality checks

[shuklanirdesh82]

integrate tests package to perform code quality checks ... currently test scripts and common utils are not as per the standard.

Two tasks

• update https://github.com/vmware/docker-volume-vsphere/blob/master/vmdk_plugin/Makefile to add package detail

• Address warning/error generated by golint (see below)

make: Entering directory `/go/src/github.com/vmware/docker-volume-vsphere/vmdk_plugin'
../tests/e2e/volumepropverification_test.go:36:19: should omit type string from declaration of var esx; it will be inferred from the right-hand side
../tests/e2e/volumepropverification_test.go:40:2: var vmIp should be vmIP
../tests/e2e/volumepropverification_test.go:40:28: should drop = "" from declaration of var vmIp; it is the zero value
../tests/e2e/volumepropverification_test.go:41:19: should omit type string from declaration of var dockerVolmRmvCmd; it will be inferred from the right-hand side
../tests/e2e/volumepropverification_test.go:43:28: should drop = "" from declaration of var containerName; it is the zero value
../tests/utils/dockercli/volumelifecycle.go:27:5: don't use ALL_CAPS in Go names; use CamelCase
../tests/utils/dockercli/volumelifecycle.go:27:5: exported var SSH_OPTS should have comment or be unexported
../tests/utils/dockercli/volumelifecycle.go:27:14: should omit type []string from declaration of var SSH_OPTS; it will be inferred from the right-hand side
../tests/utils/dockercli/volumelifecycle.go:29:1: comment on exported function CreateDefaultVolume should be of the form "CreateDefaultVolume ..."
../tests/utils/dockercli/volumelifecycle.go:36:1: comment on exported function DeleteVolume should be of the form "DeleteVolume ..."
../tests/utils/dockercli/volumelifecycle.go:42:1: comment on exported function InvokeCommand should be of the form "InvokeCommand ..."
../tests/utils/inputparams/testparams.go:39:1: exported function GetVolumeName should have comment or be unexported
../tests/utils/inputparams/testparams.go:43:1: exported function GetVolumeNameWithTimeStamp should have comment or be unexported
../tests/utils/inputparams/testparams.go:47:1: exported function GetEndPoint1 should have comment or be unexported
../tests/utils/inputparams/testparams.go:51:1: exported function GetEndPoint2 should have comment or be unexported
../tests/utils/verification/volumeproperties.go:27:5: don't use ALL_CAPS in Go names; use CamelCase
../tests/utils/verification/volumeproperties.go:27:5: exported var ADMIN_CLI_LS should have comment or be unexported
../tests/utils/verification/volumeproperties.go:28:5: don't use ALL_CAPS in Go names; use CamelCase
../tests/utils/verification/volumeproperties.go:28:5: exported var DOCKER_CLI_INSPC should have comment or be unexported
../tests/utils/verification/volumeproperties.go:30:1: comment on exported function GetVmAttachedToVolUsingDockerCli should be of the form "GetVmAttachedToVolUsingDockerCli ..."
../tests/utils/verification/volumeproperties.go:31:6: func GetVmAttachedToVolUsingDockerCli should be GetVMAttachedToVolUsingDockerCli
../tests/utils/verification/volumeproperties.go:40:1: comment on exported function GetVmAttachedToVolUsingAdminCli should be of the form "GetVmAttachedToVolUsingAdminCli ..."
../tests/utils/verification/volumeproperties.go:41:6: func GetVmAttachedToVolUsingAdminCli should be GetVMAttachedToVolUsingAdminCli
../tests/utils/verification/volumeproperties.go:55:1: comment on exported function GetVolumePropertiesAdminCli should be of the form "GetVolumePropertiesAdminCli ..."
../tests/utils/verification/volumeproperties.go:70:1: comment on exported function GetVolumePropertiesDockerCli should be of the form "GetVolumePropertiesDockerCli ..."
../tests/utils/verification/volumeproperties.go:93:1: comment on exported function GetDockerVersion should be of the form "GetDockerVersion ..."
../tests/utils/verification/volumeproperties.go:100:1: comment on exported function ExecCmd should be of the form "ExecCmd ..."
../tests/utils/verification/volumeproperties.go:110:1: comment on exported function IsDockerCliCheckNeeded should be of the form "IsDockerCliCheckNeeded ..."

/CC @tusharnt