feature(esxi-agent): Esxi Agent Golang

1. 修改了host-deployer 使其支持 vmware vddk 的 deploy guest fs 操作。
2. esxi agent python ==> Go

fix(esxi-agent): Fix some bugs and irregular contents

fix(esxi-agent): Partial parameter structure

fix(esxi-agent): Add ovf template and remove some binary file

fix(esxi-agent): Format Code

fix(esxi-agent): fix based on reviewers' comments

fix(esxi-agent): fix host-deployer because of occasional unknown panic

fix: DelayTask should have a new Context

fix(esxi-agent): call hostutils.DelayTask

change '_interface' package to 'iagent' package

fix(esxi-agent): Fix some irregular code

pkg/hostman/diskutils/diskutils.go

@@ -308,6 +308,10 @@ func (d *SKVMGuestDisk) DetectIsUEFISupport(rootfs fsdriver.IRootFsDriver) bool
 	return false
 }
 
+func (d *SKVMGuestDisk) MountRootfs() fsdriver.IRootFsDriver {
+	return d.MountKvmRootfs()
+}
+
 func (d *SKVMGuestDisk) MountKvmRootfs() fsdriver.IRootFsDriver {
 	return d.mountKvmRootfs(false)
 }
@@ -340,6 +344,10 @@ func (d *SKVMGuestDisk) UmountKvmRootfs(fd fsdriver.IRootFsDriver) {
 	}
 }
 
+func (d *SKVMGuestDisk) UmountRootfs(fd fsdriver.IRootFsDriver) {
+	d.UmountKvmRootfs(fd)
+}
+
 func (d *SKVMGuestDisk) MakePartition(fs string) error {
 	return Mkpartition(d.nbdDev, fs)
 }