feat: KSP/Kotlin compiler plugin support

This changeset restructures the build to provide more control over
Kotlin targets. Support is introduced for KSP processors and Kotlin
compiler plugins.

The plugins don't do much yet, but will host rich functionality
later down the road once the build flow is perfected. A number of
other important changes are also enclosed which prepare the lib for
an initial beta release.

Changes enclosed:
- Cleanup all workflow configs
- Add sharing of codebase-wide properties
- Add ABI check validation (fixes and closes #70), + build step
- Refactor convention plugins (relates to #71)
- Prep version catalog and platform releases (relates to #73)
- Prep for SSG compiler (relates to #65 and #76)
- Fix state sharing issue (fixes and closes #35)
- Fix benchmarks module, add continuous micro-benchmarking job

.github/workflows/bench.ci.yml

@@ -0,0 +1,111 @@
+name: Benchmark
+
+on:
+  push:
+    branches:
+      - stable
+      - v3
+  pull_request:
+    types: [opened, reopened, synchronize]
+
+env:
+  GRADLE_CACHE_USERNAME: ${{ secrets.GRADLE_CACHE_USERNAME }}
+  GRADLE_CACHE_PASSWORD: ${{ secrets.GRADLE_CACHE_PASSWORD }}
+
+jobs:
+  ##
+  ## Job: Benchmarks
+  ##
+
+  bench:
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu]
+        java: [17]
+        engine: [graalvm]
+        experimental: [false]
+        include:
+          - os: macos
+            java: 17
+            engine: graalvm
+            experimental: false
+
+    name: "JVM"
+    runs-on: ${{ matrix.os }}-latest
+    continue-on-error: ${{ matrix.experimental }}
+
+    permissions:
+      actions: "read"
+      checks: "write"
+      contents: "write"
+      pull-requests: "write"
+
+    defaults:
+      run:
+        shell: bash
+
+    steps:
+      - name: "Setup: Checkout"
+        uses: actions/checkout@v3
+      - name: "Setup: GraalVM"
+        uses: graalvm/setup-graalvm@v1
+        if: ${{ matrix.engine == 'graalvm' }}
+        with:
+          components: "native-image,js"
+          version: latest
+          java-version: ${{ matrix.java }}
+          github-token: ${{ secrets.GITHUB_TOKEN }}
+      - name: "Setup: Zulu"
+        uses: actions/setup-java@v3
+        if: ${{ matrix.engine != 'graalvm' }}
+        with:
+          distribution: ${{ matrix.engine }}
+          java-version: ${{ matrix.java }}
+      - name: "Setup: Node"
+        uses: actions/setup-node@v3
+        with:
+          node-version: 18
+          cache: "yarn"
+      - name: "Setup: Yarn"
+        run: yarn
+      - name: "Run Benchmarks"
+        uses: gradle/gradle-build-action@v2.3.3
+        id: gradlebench
+        continue-on-error: ${{ matrix.experimental }}
+        env:
+          CI: true
+          GRADLE_CACHE_PUSH: false
+        with:
+          cache-read-only: true
+          arguments: |
+            :benchmarks:server:benchmark
+            --no-daemon
+            --warning-mode=none
+            --dependency-verification=lenient
+            -Pelide.ci=true
+            -PbuildBenchmarks=true
+            -PbuildSamples=false
+            -PbuildDocs=false
+            -Pversions.java.language=${{ matrix.java }}
+      - name: "Locate Benchmark Report"
+        id: benchreport
+        run: |
+          echo "BENCHMARK_REPORT=$(find benchmarks/server/build/reports/benchmarks/main -name "*.json" | head -n 1)" >> $GITHUB_OUTPUT
+      - name: "Restore Previous Benchmark"
+        uses: actions/cache@v1
+        with:
+          path: ./benchmark_reports
+          key: ${{ runner.os }}-${{ matrix.engine }}-${{ matrix.java }}-benchmark
+      - name: "Upload Benchmark Report"
+        uses: benchmark-action/github-action-benchmark@v1
+        with:
+          name: "Elide: Server"
+          tool: "jmh"
+          auto-push: false
+          external-data-json-path: benchmark_reports/benchmark-data.json
+          comment-on-alert: true
+          comment-always: ${{ !matrix.experimental }}
+          output-file-path: ${{ steps.benchreport.outputs.BENCHMARK_REPORT }}
+          github-token: ${{ secrets.GITHUB_TOKEN }}
+          fail-on-alert: ${{ !matrix.experimental }}