sm: completely rewrite module

stratosphere: prefer static waitable managers

stratosphere: remove trailing whitespace

Update libstrat

ams_mitm: refactor for R_TRY

dmnt: fix missing init

sm: refactor mitm service handle acquisition

stratosphere: more result cleanup

boot: refactor for R_TRY

dmnt: trailing whitespace

dmnt: update for R_TRY

loader: implement 8.1.0 changes

exo: support for 8.1.0

fatal: refactor for R_TRY

loader: refactor for R_TRY

PM: Refactor for R_TRY, remove gotos

ro: update for R_TRY usage

sm: refactor to use R_TRY

spl: refactor to use R_TRY

ams_mitm: update write handle persist path

Fix emummc nintendo dir redirection

Merge branch 'master' into emunand_dev

dmnt: update targetio file ops for new libnx api

Merge pull request #555 from lioncash/header ...

bpcmitm_main: Add missing header guard

bpcmitm_main: Remove unnecessary includes ...

Quite a few headers are unused in this header, so we can remove them to
make compilation a tiny bit faster.

bpcmitm_main: Add missing header guard ...

Prevents potential inclusion issues.

setsys_settings_items: Less resource churn with combined key/value construction ...

The previous string construction discards two temporary std::string
instances (operator+ returns by value, not by reference), and creates a
std::string that it doesn't need to (the one around key). Instead we can
just append to the end of the initial std::string itself, saving on two
unnecessary created strings.

append() has a const char* overload as well (as does operator+), so we
can just append the key string as is without creating an entire new
string.

setsys_settings_items: Simplify buffer management in LoadConfiguration() ...

We can use a std::string here instead of setting up a scope guard and
manual allocations. We also don't need to care about null-termination,
as c_str() will automatically ensure this is done when passing it into
ini_parse_string().

Merge branch 'master' into emunand_dev

Update for latest libnx