Move orm_fn to an independent warehouse

[Jengro777]

Describe the feature

@kbkpbot
First of all, thank you very much. Before ORM added support for dynamic operations, orm_fn served as a great complement.

However, orm_fn has a major issue: type correctness can only be checked at runtime, which is not very friendly for debugging. That said, we cannot simply remove orm_fn, as many VPer coming from other languages still really enjoy its fluent chain-style expression.

Therefore, it is suggested to move orm_fn to a separate repository for independent maintenance.

Use Case

Not applicable

Proposed Solution

No response

Other Information

No response

Acknowledgements

• I may be able to implement this feature request
• This feature might incur a breaking change

Version used

V 0.5.1 a2be374

Environment details (OS name and version, etc.)

V full version	V 0.5.1 8ef799c.a2be374
OS	linux, Deepin 25
Processor	20 cpus, 64bit, little endian, 13th Gen Intel(R) Core(TM) i5-13500
Memory	8.34GB/31.03GB
V executable	/home/Jengro/opt/v/v
V last modified time	2026-04-27 00:53:44
V home dir	OK, value: /home/Jengro/opt/v
VMODULES	OK, value: /home/Jengro/.vmodules
VTMP	OK, value: /tmp/v_1000
Current working dir	OK, value: /home/Jengro
Git version	git version 2.51.0
V git status	0.5.1-1390-ga2be3749
.git/config present	true
cc version	cc (Deepin 12.3.0-17deepin17) 12.3.0
gcc version	gcc (Deepin 12.3.0-17deepin17) 12.3.0
clang version	Deepin clang version 17.0.6 (5deepin7)
tcc version	tcc version 0.9.28rc 2025-02-13 HEAD@f8bd136d (x86_64 Linux)
tcc git status	thirdparty-linux-amd64 696c1d84
emcc version	N/A
glibc version	ldd (Debian GLIBC 2.38-6deepin21) 2.38

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