Add FreeBSD x86_64 debug tests

[XVilka]

Your checklist for this pull request

• I've read the guidelines for contributing to this repository
• I made sure to follow the project's coding style
• I've documented or updated the documentation of every function and struct this PR changes. If not so I've explained why.
• I've added tests that prove my fix is effective or that my feature works (if possible)
• I've updated the rizin book with the relevant information (if needed)

Detailed description

Adds basic FreeBSD x86_64 debug tests.

Requires rizinorg/rizin-testbins#101

Test plan

FreeBSD CI is green

Closing issues

Partially addresses #3072

[XVilka]

@arrowd, you might be interested in this one, by the way. Feel free to send a new PR if you want.

[XVilka]

@kazarmy as you can see, even FreeBSD debugging doesn't work:

[XX] db/archos/freebsd-x64/dbg write gpr
RZ_NOPLUGINS=1 /home/build/bin/rizin -escr.utf8=0 -escr.color=0 -escr.interactive=0 -eflirt.sigdb.load.system=false -eflirt.sigdb.load.home=false -N -d -qc 'db @ main + 64
dc
dr rax
dr rax = 1337
dc
' bins/elf/calculate-freebsd-x64
-- stdout
--- expected
+++ actual
@@ -1,2 +1,2 @@
-rax = 0x000000000000002a
-Result = 1337
+Result = 42
+Debugging is not enabled. Run ood?

-- stderr
--- expected
+++ actual
@@ -1,4 +1,27 @@
-hit breakpoint at: f70
+Process 
+with 
+PID 
+387 
+child 
+exited 
+with 
+status 
+Process 
+finished
 
-Process finished
 
+ERROR: 
+Failed 
+to 
+read 
+ERROR: 
+No 
+such 
+register 
+or 
+register 
+type: 
+ERROR: 
+Failed 
+to 

https://builds.sr.ht/~thestr4ng3r/job/1239045

[kazarmy]

Well that's one reason why no testing was done in #4524 - debugging might have been broken well before the build itself broke