WIP feature on smarter bootstrap
update docs, critic
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Changes/critic
v0.02000000

 [!Noteworthy Changes]
 - @INC mutation now done slightly later at C<register_component>, which lets us get payload parameters out,
   while still executing the real work long before anything else. Though execution order still matters profusely.
 - 3 new parameters,
 - `try_built` tries to use a previous build instead of a "undef version" based bootstrap
 - `fallback = 1` enables `try_built` to fall back to the `bootstrap lib` form ( this is the default )
 - `no_fallback = 1` disables `fallback`

 [Dependencies::Removed / runtime requires]
 - File::Spec
 - Carp

 [Dependencies::Added / runtime requires]
 - Path::Tiny
 - Cwd