feat(core): Add coin definition for eCash XEC (altcoin based on bitcoin)

[Fabcien]

This PR adds the definition for eCash (XEC).

I tried to use support.py to generate the support.json but this currenly fails due to the missing release file for T3W1 so I updated manually.

make gen builds successfully. I also ran make style_check but this failed on me with 122 reportArgumentType errors from pyright. I'm probably not using the right version, but all the reports are unrelated to this change, and the other linters return no error. I expect it to pass on CI.

[Fabcien]

@matejcik Can you explain why the CI is failing and if there is something I need to do to fix it ? It looks like a permission issue at first sight but not sure

[matejcik]

"add to github project" -> don't worry about this one

"gen check" -> you did not run make gen and commit the resulting changes
"defs check" -> for some reason our checker requires coin_name and coin_label to start with an uppercase letter. i believe the right thing to do is add an exception for e to the regexps in common/tools/coin_info.py

[matejcik]

I also ran make style_check but this failed on me wi

export PYRIGHT_PYTHON_FORCE_VERSION=1.1.361

[Fabcien]

I pushed 2 new commits:

• One to add an exception for defs_checks as suggested by @matejcik
• One to include the output of make gen

I ran make style_check (thanks for the hint), make gen_check and make defs_check and they all passed.

Should I squash the commits ?

[prusnak]

I prefer to keep the name like this.

That way we do not need to change 2 regex-es, only one.

Suggested change

	"coin_name": "eCash",
	"coin_name": "Ecash",

[Fabcien]

I prefer to keep the name like this.

That way we do not need to change 2 regex-es, only one.

Good call, since it's not used for display it's fine to keep the uppercase here. I updated and pushed accordingly.

[Fabcien]

@matejcik @prusnak Is there anything else I need to do ?

[matejcik]

the support info is wrong. T1B1 should be 1.12.2 (next version up), all others should be 2.8.6 (next version up)
also please fixup the "make gen" commit into the "add coin definition", and update the other commit to use ConventionalCommit name (feat(common):)

[Fabcien]

@matejcik Thanks I updated accordingly.

[Fabcien]

@matejcik @prusnak Is there anything left to do ?