PR #2023 fixed a composition issue for chisel3 biconnects delegating to
FIRRTL partial connect when compatibility mode Bundles are elements of
chisel3 Bundles. It missed an important case though that caused
previously working code to break.

The bug is fixed by doing the automatic flipping for compatibility mode
Bundles that have "Input" as a direction in addition to those that are
"Flipped".

BiConnect in chisel3 delegates to FIRRTL <- semantics whenever it hits a
Bundle defined in `import Chisel._`. Because chisel3 <> is commutative
it needs to be mindful of flippedness when emitting a FIRRTL <- (which
is *not* commutative).

This has been legal in FIRRTL since v1.2.3 (when reset inference started
using a unification-style algorithm) but was never exposed in the Chisel
API.

Also delete the overridden connects in AsyncReset and ResetType which
just duplicate logic from MonoConnect.

* fixing context bug (#1874)

(cherry picked from commit 2c7264a6

)

# Conflicts:
#	src/main/scala/chisel3/aop/injecting/InjectingAspect.scala
#	src/test/scala/chiselTests/aop/InjectionSpec.scala

* Resolve conflicts

Co-authored-by: Deborah Soung <debs@sifive.com>

(cherry picked from commit da5e5cb5

)

Co-authored-by: Martin Schoeberl <martin@jopdesign.com>

nitpick

(cherry picked from commit 83eeda2e

)

Co-authored-by: Fabien Marteau <fabien.marteau@armadeus.com>

Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com>
(cherry picked from commit 0cc35a26

)

Co-authored-by: Jiuyang Liu <liu@jiuyang.me>

* Remove space between backticks and language
* Make code examples in memories explanation work

Co-authored-by: Jack Koenig <koenig@sifive.com>
(cherry picked from commit f39ec2ef

)

Co-authored-by: Carlos Eduardo <me@carlosedp.com>

(cherry picked from commit 6e22d91e

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Co-authored-by: Megan Wachs <megan@sifive.com>

* Add documentation guide about memory initialization

* Move information to experimental and add ref

(cherry picked from commit e0da5ae4

)

Co-authored-by: Carlos Eduardo <me@carlosedp.com>

(cherry picked from commit d3e2b346

)

Co-authored-by: XinJun Ma <xinjun.ma@qq.com>

(cherry picked from commit a54d37d2

)

Co-authored-by: Kalamár Ödön <kalamarodon@gmail.com>

(cherry picked from commit 9c9bc131

)

Co-authored-by: Jack Koenig <koenig@sifive.com>