Add provisioining event tracing

[timidri]

This change adds logging vsphere events if a vsphere VM fails.
The log creates a JSON array from events and includs only the field fullFormattedMessage. It looks like this:

docker-vmpooler-manager-1  | [2023-09-19 11:15:22] [TEST] [debian-11-x86_64] 'idle-prepolymer' events: ["Assigned new BIOS UUID (42043c18-ef33-bbb6-8ac6-cee47effa4c7) to idle-prepolymer on pix-jj28-u19.ops.puppetlabs.net in pix","Assign a new instance UUID (50046dc0-c241-8cb3-0206-c671bf31a5bc) to idle-prepolymer","Changed MAC address from 00:50:56:84:2d:12 to 00:50:56:84:4f:eb for adapter vmpooler2 for idle-prepolymer","Reconfigured idle-prepolymer on pix-jj28-u19.ops.puppetlabs.net in pix.  \n \nModified:  \n \nconfig.annotation: \"Packer build: debian-11-x86_64-0.0.2 built 2021-08-23T13:59:36Z SHA: 5434ca40d3c2c023ddf5283855470987e5b26102 OS Type: debian10_64Guest\" -> \"(\n  \"name\": \"idle-prepolymer\",\n  \"created_by\": \"dimitri.tischenko@perforce.com\",\n  \"base_template\": \"templates/vmpooler_acceptance5/debian-11-x86_64-0.0.3\",\n  \"creation_timestamp\": \"2023-09-19 11:09:12 UTC\"\n)\"; \n\nconfig.hardware.device(4000).macAddress: \"00:50:56:84:2d:12\" -> \"00:50:56:84:4f:eb\"; \n\n Added:  \n \nconfig.extraConfig(\"mainMem.iowait\"): (key = \"mainMem.iowait\", value = \"5\"); \n\nconfig.extraConfig(\"mainMem.ioBlockPages\"): (key = \"mainMem.ioBlockPages\", value = \"2048\"); \n\nconfig.extraConfig(\"guestinfo.hostname\"): (key = \"guestinfo.hostname\", value = \"idle-prepolymer\"); \n\n Deleted:  \n \n","debian-11-x86_64-0.0.3 cloned to idle-prepolymer on pix-jj28-u19.ops.puppetlabs.net,  in pix","idle-prepolymer on pix-jj28-u19.ops.puppetlabs.net in pix is starting","idle-prepolymer on pix-jj28-u19.ops.puppetlabs.net in pix has powered on","Alarm 'vSphere HA virtual machine failover failed' on idle-prepolymer changed from Gray to Green","Virtual machine idle-prepolymer's PMem bandwidth usage is normal","Alarm 'Virtual Machine High PMem Bandwidth Usage' on idle-prepolymer changed from Gray to Green","Alarm 'Virtual machine memory usage' on idle-prepolymer changed from Gray to Green","Alarm 'Virtual machine CPU usage' on idle-prepolymer changed from Gray to Green"]

Pretty-printed version:

[
  "Assigned new BIOS UUID (42043c18-ef33-bbb6-8ac6-cee47effa4c7) to idle-prepolymer on pix-jj28-u19.ops.puppetlabs.net in pix",
  "Assign a new instance UUID (50046dc0-c241-8cb3-0206-c671bf31a5bc) to idle-prepolymer",
  "Changed MAC address from 00:50:56:84:2d:12 to 00:50:56:84:4f:eb for adapter vmpooler2 for idle-prepolymer",
  "Reconfigured idle-prepolymer on pix-jj28-u19.ops.puppetlabs.net in pix.  \n \nModified:  \n \nconfig.annotation: \"Packer build: debian-11-x86_64-0.0.2 built 2021-08-23T13:59:36Z SHA: 5434ca40d3c2c023ddf5283855470987e5b26102 OS Type: debian10_64Guest\" -> \"(\n  \"name\": \"idle-prepolymer\",\n  \"created_by\": \"dimitri.tischenko@perforce.com\",\n  \"base_template\": \"templates/vmpooler_acceptance5/debian-11-x86_64-0.0.3\",\n  \"creation_timestamp\": \"2023-09-19 11:09:12 UTC\"\n)\"; \n\nconfig.hardware.device(4000).macAddress: \"00:50:56:84:2d:12\" -> \"00:50:56:84:4f:eb\"; \n\n Added:  \n \nconfig.extraConfig(\"mainMem.iowait\"): (key = \"mainMem.iowait\", value = \"5\"); \n\nconfig.extraConfig(\"mainMem.ioBlockPages\"): (key = \"mainMem.ioBlockPages\", value = \"2048\"); \n\nconfig.extraConfig(\"guestinfo.hostname\"): (key = \"guestinfo.hostname\", value = \"idle-prepolymer\"); \n\n Deleted:  \n \n",
  "debian-11-x86_64-0.0.3 cloned to idle-prepolymer on pix-jj28-u19.ops.puppetlabs.net,  in pix",
  "idle-prepolymer on pix-jj28-u19.ops.puppetlabs.net in pix is starting",
  "idle-prepolymer on pix-jj28-u19.ops.puppetlabs.net in pix has powered on",
  "Alarm 'vSphere HA virtual machine failover failed' on idle-prepolymer changed from Gray to Green",
  "Virtual machine idle-prepolymer's PMem bandwidth usage is normal",
  "Alarm 'Virtual Machine High PMem Bandwidth Usage' on idle-prepolymer changed from Gray to Green",
  "Alarm 'Virtual machine memory usage' on idle-prepolymer changed from Gray to Green",
  "Alarm 'Virtual machine CPU usage' on idle-prepolymer changed from Gray to Green"
]

Fixes puppetlabs/vmpooler-provider-vsphere#55