Upgrade to .Net Framework 48 and make SayMore 64-bit

[tombogle]

Addresses:
#246
#248

---

This change is 

[andrew-polk]

@andrew-polk reviewed 36 of 36 files at r1, all commit messages.
Reviewable status: all files reviewed, 1 unresolved discussion (waiting on @megahirt and @tombogle)

---

src/SayMoreTests/SayMoreTests.csproj line 44 at r1 (raw file):

    <None Remove="Resources\shortSound.wav" />
    <None Remove="Resources\shortVideo.wmv" />
    <None Remove="Resources\test.eaf" />

Why is this list removed, then included?

[tombogle]

src/SayMoreTests/SayMoreTests.csproj line 44 at r1 (raw file):

Previously, andrew-polk wrote…

Why is this list removed, then included?

That pattern is **correct and intentional. It looks weird, but it’s exactly how you’re supposed to override the new defaults. In SDK-style projects, files like these are auto-included as None and you cannot convert None → EmbeddedResource directly. So the need to be explicitly removed from None and the added back as an EmbeddedResource.

[andrew-polk]

Reviewable status: complete! all files reviewed, all discussions resolved (waiting on @megahirt)

[andrew-polk]

@andrew-polk reviewed 1 of 1 files at r2, all commit messages.
Reviewable status: complete! all files reviewed, all discussions resolved (waiting on @megahirt)