CR publication prep and IR finalization

[mmccool]

• Updates to CR:
  • small wording change in at-risk section: "deployments" -> "deployment policy"
  • to be consistent with versions of text used in Architecture and Thing Description
• Updates to test results
  • CoAP and CoRE-RD improvements, several at-risk items removed

NOTE: IR is still held in DRAFT status and is so marked. It will be updated as soon as possible to address the issues noted. An ednote for IANA will be added as well.

To do:

• Update IR, dates, etc. consistent with Architecture and TD IRs

[k-toumura]

• Rendered version of Overview.html (1a1260c)
• Rendered version of IR (1a1260c)

[mlagally]

Some review comments:

1. The description contains a broken reference to the implementation reports in Section 3.

Implementer reports were collected through the W3C WoT Interest Group's PlugFest activity and collected in the GitHub repository https://github.com/w3c/wot under testing/tests/2019-05/.

2. There are no implementation descriptions contained in section 6.

3. Section 8 would benefit from a legend that explains the meaning of "P F N T"

[egekorkan]

@mlagally here are some explanations for your comments:

1. I am not entirely sure but I think that this link is a placeholder. The Discovery document will be published under this link. @mmccool correct me if I am wrong.
2. As it was also done with the TD, the implementation descriptions are in the architecture specification. This was decided quite some time ago but we can simply duplicate them into here in the CR transition. A first time reader might have the same question so we should link to the arch IR in the worst case.
3. The Result list item at the bullet list in the beginning of Section 8 actually explains what these letters mean. However, this text can be overlooked and it would not hurt to add more information. A simple improvement would be to add the title attribute which would show the full text when the mouse is hovered over it. Also note that this is how we did in the TD 1.0 as well.

[mmccool]

The implementation report updates for Discovery unfortunately are lagging behind those for TD and Architecture. Some of the issues noted are in the template and have been addressed already in the TD and Architecture versions of the report. Since we had a resolution to go to CR transition today in the main call for Discovery and don't want to delay that, I have marked the IR with the DRAFT title in this PR and will update it as soon as possible to address these issues. However, I want to merge this PR (as resolved in the main call) and deal with those issues in the IR in a new PR.