add dotnet limitation rule for dynamic samples

[v1bh475u]

needed for issue mandiant/capa#1864

• move rules from internal/limitation/file to internal/limitation/static
• add new namespace for dynamic limitations internal/limitation/dynamic
• add new rule internal-dotnet-file-limitation.yml inside internal/limitation/dynamic namespace

[williballenthin]

please address pending suggestions, then i'll approve and merge

[v1bh475u]

I am sorry. I didn't get it.

[v1bh475u]

@williballenthin, I have updated what changes are to be made for the mandiant/capa#2568 to work as intended.

[williballenthin]

ah sorry these suggestions were only pending, but i thought they were visible to you. my mistake.

[v1bh475u]

Done with changes.

[williballenthin]

thank you!