Upgrade all manifests to v1 manifest format

manifests/z/Zettlr/Zettlr/1.6.0/Zettlr.Zettlr.yaml

@@ -0,0 +1,21 @@
+PackageIdentifier: Zettlr.Zettlr
+Publisher: Zettlr
+PackageName: Zettlr
+Moniker: Zettlr
+PackageVersion: 1.6.0
+License: GNU General Public License v3.0
+LicenseUrl: https://github.com/Zettlr/Zettlr/blob/develop/LICENSE
+ShortDescription: Zettlr is a supercharged markdown editor that combines many writing editor features and collect them in one application. It aims at speeding up your workflow and help you write without any interruptions.
+PackageUrl: https://www.zettlr.com/
+Tags:
+- editor
+- markdown
+- writer
+Installers:
+- Architecture: neutral
+  InstallerUrl: https://github.com/Zettlr/Zettlr/releases/download/v1.6.0/Zettlr-1.6.0.exe
+  InstallerSha256: 88B99E7B22B746F39958DBB8B434C886462708871CC230A109F0705B90D2095C
+  InstallerType: nullsoft
+PackageLocale: en-US
+ManifestType: singleton
+ManifestVersion: 1.0.0

manifests/z/Zettlr/Zettlr/1.8.7/Zettlr.Zettlr.yaml

@@ -0,0 +1,23 @@
+PackageIdentifier: Zettlr.Zettlr
+Publisher: Zettlr
+PackageName: Zettlr
+PackageVersion: 1.8.7
+License: GNU General Public License v3.0
+InstallerType: nullsoft
+LicenseUrl: https://github.com/Zettlr/Zettlr/blob/develop/LICENSE
+Moniker: Zettr
+Tags:
+- editor
+- markdow
+- writer
+ShortDescription: Zettlr is a supercharged markdown editor that combines many writing editor features and collect them in one application. It aims at speeding up your workflow and help you write without any interruptions.
+PackageUrl: https://www.zettlr.com/
+Installers:
+- Architecture: x64
+  InstallerType: nullsoft
+  InstallerUrl: https://github.com/Zettlr/Zettlr/releases/download/v1.8.7/Zettlr-1.8.7-x64.exe
+  InstallerSha256: 6A3BB50A11475CD8F8C47A0B018153374F6B6DC6F2D9F955234109B62D94EE0F
+  Silent: /S
+PackageLocale: en-US
+ManifestType: singleton
+ManifestVersion: 1.0.0